| Sample ids | Locality | Sample number | Donor | Year | Rock name |
|---|---|---|---|---|---|
| E16577; COLLNOA104; | Source of stream between Tan y Gaden and Gill Farmyard | E16577; COLLNOA104; | * | Rhyolite. 'Original entry: Rhyolite' | |
| E16580; COLLNOA112; | Below E end of Mynydd Gader | E16580; COLLNOA112; | * | Rhyolite. 'Original entry: Rhyolite' | |
| E16584; COLLNOA120; | Foot of W end of Mynydd Gader | E16584; COLLNOA120; | * | Rhyolite. 'Original entry: Rhyolite' | |
| E16589; COLLNOA127; | E of Llynan Mynydd | E16589; COLLNOA127; | * | Rhyolite. 'Original entry: Rhyolite' | |
| E16597; COLLNOA149A; | ENGLAND. Barmouth (149) | E16597; COLLNOA149A; | * | Rhyolite. 'Original entry: Rhyolite' | |
| E16622; COLLNOA189; | Mynydd Gader, SE end. | E16622; COLLNOA189; | * | Rhyolite. 'Original entry: Micropaciletic Rhyolite' | |
| E16652; COLLNOA257; | Mynydd Gader | E16652; COLLNOA257; | * | Rhyolite. 'Original entry: Rhyolite' | |
| E16660; COLLNOA272; | W of Little Ponds, Mynydd Gader | E16660; COLLNOA272; | * | Rhyolite. 'Original entry: Rhyolite' | |
| E16665; COLLNOA282; | Penrhyn Gwyn | E16665; COLLNOA282; | * | Rhyolite. 'Original entry: Rhyolite' | |
| E16666; COLLNOA290; | SW boder of Mynydd Gader | E16666; COLLNOA290; | * | Rhyolite. 'Original entry: Rhyolite' | |
| E7638; COLLNOA66; | Road N of Rhydwen, Dolgelly | E7638; COLLNOA66; | * | Rhyolite. 'Original entry: Rhyolite' | |
| E7640; COLLNOA80; | Near source of Nant y Cennant, Dolgelly | E7640; COLLNOA80; | * | Rhyolite. 'Original entry: Rhyolite' | |
| E7647; COLLNOA179; | S side of Mynydd Gadder, Dolgelly | E7647; COLLNOA179; | * | Rhyolite. 'Original entry: Rhyolite' | |
| E7648; COLLNOA183; | Near Little Ponds, Mynydd Gadder, Dolgelly | E7648; COLLNOA183; | * | Rhyolite. 'Original entry: Rhyolite' | |
| E7649; COLLNOA185; | Mynydd Gadder, Dolgelly | E7649; COLLNOA185; | * | Rhyolite. 'Original entry: Rhyolite' | |
| E60427; E60427/A; E60427/B; COLLNOBARD A; | Bardon Hill Qry. | E60427; E60427/A; E60427/B; COLLNOBARD A; | * | Rhyodacite. 'Original entry: Rhyodacite' | |
| E60428; COLLNOBARD B; | Bardon Hill Qry. | E60428; COLLNOBARD B; | * | Rhyodacite. 'Original entry: Rhyodacite' | |
| E60429; COLLNOBARD B2; | Bardon Hill Qry. | E60429; COLLNOBARD B2; | * | Rhyodacite. 'Original entry: Rhyodacite' | |
| E60430; COLLNOBARD C; | Bardon Hill Qry. | E60430; COLLNOBARD C; | * | Rhyodacite. 'Original entry: Rhyodacite' | |
| E17313; COLLNOTJ1392; | Withnoe Down Qry. 1/4 ml S of Withnoe Farm | E17313; COLLNOTJ1392; | * | Rhyolite. 'Original entry: Biotite Rhyolite' | |
| E17314; COLLNOTJ1395; | Withnoe Qry. 1/4 ml S of Withnoe Farm | E17314; COLLNOTJ1395; | * | Rhyolite. 'Original entry: Biotite Rhyolite' | |
| E16560; COLLNOA67; | Road N of Rhyd Wen | E16560; COLLNOA67; | * | Rhyolite. 'Original entry: Rhyolite' | |
| E16562; COLLNOA69; | E of the Road N of Rhyd Wen | E16562; COLLNOA69; | * | Rhyolite. 'Original entry: Rhyolite' | |
| COLLNO1; ED7344; | BOTSWANA. | COLLNO1; ED7344; | * | Rhyolite. 'Original entry: Rhyolite' | |
| S97046; COLLNODU9870C; | N of West Minishal, Rum | S97046; COLLNODU9870C; | * | Rhyodacite. 'Original entry: Rhyodacite' | |
| S97061; COLLNODU13876; | Beinn nan Stac summit, Rum | S97061; COLLNODU13876; | * | Rhyodacite. 'Original entry: Rhyodacite' | |
| S96993; COLLNOSR333; | Beinn nan Stac, Rum | S96993; COLLNOSR333; | *; *; | Rhyodacite. 'Original entry: Rhyodacite' | |
| S96983; COLLNOSR248; | Compass Hill, Canna | S96983; COLLNOSR248; | *; *; | Rhyodacite. 'Original entry: Rhyodacite' | |
| E67340 | Gilfach Farm No. 2 BH. 1 Km 324 deg from Gilfach Fm. 2.5 Km N of Llanwrtyd Wells | E67340 | * | Rhyodacite. | |
| S97008; COLLNOSR486; | Meall Breac, Rum | S97008; COLLNOSR486; | *; *; | Rhyodacite. 'Original entry: Rhyodacite' | |
| S97015; COLLNOSR526; | Sandy Corrie, Dibidil, Rum | S97015; COLLNOSR526; | *; *; | Rhyodacite. 'Original entry: Rhyodacite' | |
| E15838; COLLNOFMT143; | 870 yds E 10 deg S of Stockdale | E15838; COLLNOFMT143; | * | Rhyolite; Tuff;. 'Original entry: Rhyolite' | |
| E17458; COLLNOWCR168; | Quarry 640 yds S of Murthwaite Bridge | E17458; COLLNOWCR168; | * | Rhyodacite. 'Original entry: Plagiophyre' | |
| E14655; COLLNOSEH201; | Roadside, 1600 yds SSE of Nether Row | E14655; COLLNOSEH201; | * | Rhyolite. 'Original entry: Rhyolite' | |
| E14625; COLLNOSEH171; | Mine dump, 200 yds S of Potts Gill | E14625; COLLNOSEH171; | * | Rhyolite. 'Original entry: Rhyolite' | |
| E1141 | Copper Mine Valley; N of Coniston | E1141 | * | Rhyolite. 'Original entry: Rhyolite' | |
| E14542; COLLNOFMT68; | In stream, 300 yds S of Norman | E14542; COLLNOFMT68; | * | Rhyolite. 'Original entry: Rhyolite' | |
| E18143; COLLNOWCCR202; | Hestham Qry. 400 N of Hestham | E18143; COLLNOWCCR202; | * | Rhyodacite. 'Original entry: Plagiophyre' | |
| E14656; COLLNOSEH202; | 700 yds SW of Outfall stream joining Dale Beck | E14656; COLLNOSEH202; | * | Rhyolite. 'Original entry: Rhyolite' | |
| E52955; COLLNOLA753; | 1200 Yds. at 108 deg. from Hafotty Lletty-wyn. | E52955; COLLNOLA753; | * | Rhyolite. 'Original entry: Rhyolite' | |
| E52957; COLLNOLA755; | 700 Yds. West of Glasgwm. | E52957; COLLNOLA755; | * | Rhyolite. 'Original entry: Rhyolite' | |
| E66221; COLLNOWPR70; | 310 m. NNW. of Spot height 766 m. (Craig Cwm Amarch). | E66221; COLLNOWPR70; | * | Rhyolite. 'Original entry: Rhyolite' | |
| E66222; COLLNOWPR71; | 200 m. NNW. of Spot height 754 m. (Craig Cwm Amarch). | E66222; COLLNOWPR71; | * | Rhyolite. 'Original entry: Rhyolite' | |
| E967 | Shilla Mill, next to extreme S. end of quarry. | E967 | * | Rhyolite. 'Original entry: Elvan' | |
| E6754; COLLNO8; | Near Collipark Cottages, S. of Christow. | E6754; COLLNO8; | * | Rhyolite. 'Original entry: Elvan' | |
| E7420; COLLNOA33; | Careg y Defaid, Pwllheli | E7420; COLLNOA33; | * | Rhyolite. 'Original entry: Rhyolite' | |
| E7621; COLLNOA36; | Pen y Chuin, Pwllheli | E7621; COLLNOA36; | * | Rhyolite. 'Original entry: Rhyolite' | |
| E7624; COLLNOA8; | Post office, Llanbedrog, Pwllheli | E7624; COLLNOA8; | * | Rhyolite. 'Original entry: Rhyolite' | |
| E591 | 0.25 miles S. of Moel-y-Menin, Arenig Range. | E591 | * | Rhyolite. 'Original entry: Rhyolite' | |
| E9141; COLLNO4A; | Knole Down Quarry. | E9141; COLLNO4A; | * | Rhyolite. 'Original entry: Elvan' | |
| E9143; COLLNO6A; | Knole Down Quarry. | E9143; COLLNO6A; | * | Rhyolite. 'Original entry: Elvan' | |
| E586 | W. of Llyn Arenig, 6 miles NW. of Bala. | E586 | * | Rhyolite. 'Original entry: Rhyolite' | |
| E8833; COLLNO343; | Tiot Hill near border of Caernarvon Town. | E8833; COLLNO343; | * | Rhyolite. 'Original entry: Porphyritic Rhyolite' | |
| E633 | Craig Rhiwarth Nr. Llangynnog | E633 | * | Rhyolite. 'Original entry: Rhyolite' | |
| E609 | Near Llanwada,2.5 miles NW of Fishguard. | E609 | * | Rhyolite. 'Original entry: Rhyolite' | |
| E11171 | On Y Garn Mountain (most westerly outcrop) | E11171 | * | Rhyolite. 'Original entry: Rhyolite' | |
| E11172 | About 340 yds W of Garn Feifod | E11172 | * | Rhyolite. 'Original entry: Rhyolite' | |
| E11173 | About 320 yds NW of Garn Feifod | E11173 | * | Rhyolite. 'Original entry: Rhyolite' | |
| E585 | Y Wenallt, 1 3/4 ml NW of Llanneschllyn | E585 | * | Rhyolite. 'Original entry: Rhyolite' | |
| E8910; COLLNO420; | Ramsey Island. | E8910; COLLNO420; | * | Rhyolite. 'Original entry: Rhyolite' | |
| E8913; COLLNO423; | Pwll Hendro, Ramsey Island. | E8913; COLLNO423; | * | Rhyolite. 'Original entry: Rhyolite' | |
| E8919; COLLNO429; | Pointz Castle. | E8919; COLLNO429; | * | Rhyolite. 'Original entry: Rhyolite' | |
| E8898; COLLNO408; | Back of cave, Nuns Chapel, St. Davids. | E8898; COLLNO408; | * | Rhyolite. 'Original entry: Rhyolite' | |
| E8899; COLLNO409; | Back of cave, Nuns Chapel, St. Davids. | E8899; COLLNO409; | * | Rhyolite. 'Original entry: Rhyolite' | |
| E8900; COLLNO410; | Pwll Hendrs, Ramsey Island. | E8900; COLLNO410; | * | Rhyolite. 'Original entry: Rhyolite' | |
| E8894; COLLNO404; | Church Quarry, St. Davids. | E8894; COLLNO404; | * | Rhyolite. 'Original entry: Rhyolite' | |
| E15939; COLLNOTG168; | Pwll Hir, Goodwich, No.5. | E15939; COLLNOTG168; | * | Rhyolite. 'Original entry: Rhyolite' | |
| E9601; COLLNO10; | 1. Foel Fawr, (foot of cliff) Ramsey Island. | E9601; COLLNO10; | * | Rhyolite. 'Original entry: Rhyolite' | |
| E9602; COLLNO11; | 1. Foel Fawr, (summit) Ramsey Island. | E9602; COLLNO11; | * | Rhyolite. 'Original entry: Rhyolite' | |
| E9592; COLLNO337; | 4. Crags on Penrhyn, E. side of Solva Harbour. | E9592; COLLNO337; | * | Rhyolite. 'Original entry: Porphyritic Rhyolite' | |
| E7237; COLLNO264; | 8. E. of Brandy Brook. | E7237; COLLNO264; | * | Rhyolite. 'Original entry: Rhyolite' | |
| E54856; COLLNOLA996; | Maiden Castle. | E54856; COLLNOLA996; | * | Rhyolite. 'Original entry: Rhyolite' | |
| E62907; COLLNOLC998; | Troutbeck, N bank at bend in stream | E62907; COLLNOLC998; | * | 1990 | Rhyolite. |
| E62905; COLLNOLC962; | Backside Beck, below main fault in volcanics | E62905; COLLNOLC962; | * | 1990 | Rhyolite. |
| E62906; COLLNOLC963; | Backside Beck, below main fault in volcanics | E62906; COLLNOLC963; | * | 1990 | Rhyolite. |
| E62902; COLLNOLC959; | Stockdale Beck; low in rhyolite | E62902; COLLNOLC959; | * | 1990 | Rhyolite. 'Original entry: Rhyolitic Tuff' |
| E62903; COLLNOLC960; | Stockdale Beck; mid. in rhyolite | E62903; COLLNOLC960; | * | 1990 | Rhyolite. 'Original entry: Rhyolitic Tuff' |
| E62904; COLLNOLC961; | Stockdale Beck; high in rhyolite | E62904; COLLNOLC961; | * | 1990 | Rhyolite. 'Original entry: Rhyolitic Tuff' |
| E61616; COLLNOMH1530; | S of Dyffrydan | E61616; COLLNOMH1530; | * | Rhyolite. | |
| E62032; COLLNOGW70; | 735 m 285 deg from Bryn Brith; 5.4 Km NE of Fairbourne Stn. | E62032; COLLNOGW70; | * | Rhyolite. | |
| E62036; COLLNOGW74; | 900 m 253 deg from Bryn Brith; 5.4 Km NE of Fairbourne Stn. | E62036; COLLNOGW74; | * | Rhyolite. | |
| E61962; COLLNOMH1563; | N of Mynydd Pencoed | E61962; COLLNOMH1563; | * | Rhyolite. | |
| E61964; COLLNOMH1565; | S of Twll yr Ogof | E61964; COLLNOMH1565; | * | Rhyolite. | |
| E7119; COLLNO243; | W95. Skomer Island. | E7119; COLLNO243; | * | Rhyolite. 'Original entry: Rhyolite' | |
| E7100; COLLNO224; | W59. Skomer Island. | E7100; COLLNO224; | * | Rhyolite. 'Original entry: Rhyolite' | |
| E61344; COLLNOLC822; | Exposure by forestry road at NE end of forest on Broughton Moor | E61344; COLLNOLC822; | * | 1989 | Rhyolite; Tuff;. |
| E61345; COLLNOLC823; | Exposure by forestry road at NE end of forest on Broughton Moor | E61345; COLLNOLC823; | * | 1989 | Rhyolite; Tuff;. |
| E8845; COLLNO355; | Tan Zr Allt | E8845; COLLNO355; | * | Rhyolite. 'Original entry: Porphyritic Rhyolite' | |
| E8876; COLLNO386; | E of Dinorwic | E8876; COLLNO386; | * | Rhyolite. 'Original entry: Porphyritic Rhyolite' | |
| E8879; COLLNO389; | Llyn Padarn | E8879; COLLNO389; | * | Rhyolite. 'Original entry: Rhyolite' | |
| E1528 | Quarry, Roadside, SW of Llyn Padarn | E1528 | * | Rhyolite. 'Original entry: Rhyolite' | |
| E1529 | Top of Clegyr Hill, NE side of Llyn Padarn | E1529 | * | Rhyolite. 'Original entry: Rhyolite' | |
| E1531 | Top of Clegyr Hill, NE side of Llyn Padarn | E1531 | * | Rhyolite. 'Original entry: Rhyolite' | |
| E491 | Llanberis Pass, 200 yds higher up than Pass of Pont y Cromleck | E491 | * | Rhyolite. 'Original entry: Rhyolite' | |
| S74048; COLLNONX1504; | W side Eildon Mid Hill | S74048; COLLNONX1504; | * | Rhyolite. | |
| S74049; COLLNONX1505; | W side Eildon Mid Hill | S74049; COLLNONX1505; | * | Rhyolite. | |
| S74002; COLLNONX1394; | Whiteadder Water, below suspension bridge at Elba | S74002; COLLNONX1394; | * | Rhyodacite. | |
| S74003; COLLNONX1395; | Whiteadder Water, S bank, at sharp bend below Mumbles Knowe | S74003; COLLNONX1395; | * | Rhyodacite. | |
| S74000; COLLNONX1389; | S bank, Monynut Water, S of Godscroft (in stream) | S74000; COLLNONX1389; | * | Rhyodacite. | |
| S74030; COLLNONX1481; | Whiteadder Water, E bank, downstream of Ellenford | S74030; COLLNONX1481; | * | Rhyodacite. | |
| S74032; COLLNONX1485A; | Eye Water, S bank, below Little Dod | S74032; COLLNONX1485A; | * | Rhyodacite. | |
| S74050; COLLNONX1506; | W side Eildon Mid Hill | S74050; COLLNONX1506; | * | Rhyolite. | |
| S74051; COLLNONX1507; | W side Eildon Mid Hill | S74051; COLLNONX1507; | * | Rhyolite. | |
| S74052; COLLNONX1508; | W side Eildon Mid Hill | S74052; COLLNONX1508; | * | Rhyolite. | |
| E1439 | E of Underwood, N of Ide. | E1439 | * | Rhyolite. 'Original entry: Porphyritic Rhyolite' | |
| E1451 | Yeos Farm; between Kenford & Dunchideock | E1451 | * | Rhyolite. 'Original entry: Rhyolite' | |
| E6947; NEG642M; | Quarry near Brannel. | E6947; NEG642M; | * | Rhyolite. 'Original entry: Elvan' | |
| E6948 | S. of St. Stephens Combe. | E6948 | * | Rhyolite. 'Original entry: Elvan' | |
| E6949 | Elvan Quarry, NE. of Sticker. | E6949 | * | Rhyolite. 'Original entry: Elvan' | |
| E6950 | Phoebis Point. | E6950 | * | Rhyolite. 'Original entry: Elvan' | |
| E6952 | Quarry in Penrice Park. | E6952 | * | Rhyolite. 'Original entry: Elvan' | |
| E5510; COLLNO325; NEG639M; | Tremore Quarry (West). (The small quarry). | E5510; COLLNO325; NEG639M; | * | Rhyolite. 'Original entry: Elvan' | |
| E5511; COLLNO326; | Tremore Quarry (West). (The small quarry). | E5511; COLLNO326; | * | Rhyolite. 'Original entry: Elvan' | |
| E5512; COLLNO327; NEG644M; | Tremore Quarry (West). (The small quarry). | E5512; COLLNO327; NEG644M; | * | Rhyolite. 'Original entry: Elvan' | |
| E5513; COLLNO328; NEG640M; | Tremore Quarry (West). (The small quarry). | E5513; COLLNO328; NEG640M; | * | Rhyolite. 'Original entry: Elvan' | |
| E5514; COLLNO329; | Tremore Quarry (West). (The small quarry). | E5514; COLLNO329; | * | Rhyolite. 'Original entry: Elvan' | |
| E5515; COLLNO330; | Tremore Quarry (Big Quarry). | E5515; COLLNO330; | * | Rhyolite. 'Original entry: Elvan' | |
| E5516; COLLNO331; NEG641M; | Little quarry in Bodwannick Wood. | E5516; COLLNO331; NEG641M; | * | Rhyolite. 'Original entry: Elvan' | |
| E11945 | Rhiwgoch Silica Qry. & Mine, Blaneau Ffestiniog | E11945 | * | Rhyolite. 'Original entry: Rhyolite' | |
| COLLNOUC224; ED4260; | COLLNOUC224; ED4260; | Rhyolite. 'Original entry: Rhyolite' | |||
| COLLNOUC225; ED4261; | COLLNOUC225; ED4261; | Rhyolite. 'Original entry: Rhyolite' | |||
| COLLNOUC227; ED4263; | COLLNOUC227; ED4263; | Rhyolite. 'Original entry: Rhyolite' | |||
| COLLNOA77; ED2111; | COLLNOA77; ED2111; | Rhyolite. 'Original entry: Rhyolite' | |||
| COLLNOA42; ED2076; | SCOTLAND. Kinross (40) | COLLNOA42; ED2076; | Rhyolite. 'Original entry: Rhyolite' | ||
| RC275/17 | Liruei | RC275/17 | Rhyolite. 'Original entry: Comendite' | ||
| S74861; S74861/B; COLLNOZD828; | Swinlees Quarry, SE corner of the large quarry in Carwinning Hill | S74861; S74861/B; COLLNOZD828; | * | Rhyodacite; Rhyolite;. | |
| M3073/2; RC319/8; | Sudbury,Ontario | M3073/2; RC319/8; | Rhyolite. 'Original entry: Rhyolite' | ||
| S74738; COLLNOMY186; | Mount Jane, 175m S of old manse | S74738; COLLNOMY186; | * | Rhyodacite. | |
| E58332; E58332/A; E58332/B; COLLNODL1319; | Small crag; c. 100 m E of Clulters Cave | E58332; E58332/A; E58332/B; COLLNODL1319; | * | 0 | Rhyolite. |
| E3638 | Between Wheal Prudence and Hanover Cove. | E3638 | * | Rhyolite. 'Original entry: Elvan' | |
| E3639 | Between Wheal Prudence and Hanover Cove. | E3639 | * | Rhyolite. 'Original entry: Elvan' | |
| E14467 | Tretheggry. | E14467 | * | Rhyolite. 'Original entry: Elvan' | |
| E4118; COLLNO82; | Penhale, Hoblyns Cove. | E4118; COLLNO82; | * | Rhyolite. 'Original entry: Elvan' | |
| E4120; COLLNO84; | Cubert, large quarry near Church. | E4120; COLLNO84; | * | Rhyolite. 'Original entry: Elvan' | |
| E4121; COLLNO85; NEG439M; | Cubert, Gravel Hill Mine. | E4121; COLLNO85; NEG439M; | * | Rhyolite. 'Original entry: Elvan' | |
| E4122; COLLNO86; | Cubert, NW. of Trelaske. | E4122; COLLNO86; | * | Rhyolite. 'Original entry: Elvan' | |
| E4123; COLLNO87; | Cliff W. of St. Perans Chapel. | E4123; COLLNO87; | * | Rhyolite. 'Original entry: Elvan' | |
| E61498; COLLNOLC837; | Backside Beck, Cautley area | E61498; COLLNOLC837; | * | 1989 | Rhyolite; Tuff;. |
| E61499; COLLNOLC838; | Backside Beck, Cautley area | E61499; COLLNOLC838; | * | 1969 | Rhyolite; Tuff;. |
| E61494; COLLNOLC833; | Backside Beck, Cautley area | E61494; COLLNOLC833; | * | 1989 | Rhyolite; Tuff;. |
| E61495; COLLNOLC834; | Backside Beck, Cautley area | E61495; COLLNOLC834; | * | 1989 | Rhyolite; Tuff;. |
| E61496; COLLNOLC835; | Backside Beck, Cautley area | E61496; COLLNOLC835; | * | 1989 | Rhyolite; Tuff;. |
| E71704; COLLNOCT1807; | Bryants Gill, Kentmere. CT 1807. | E71704; COLLNOCT1807; | * | 1997 | Rhyolite. |
| E71689; COLLNOCT1791; | Tongue Quarry, Kentmere. CT 1791. | E71689; COLLNOCT1791; | * | 1997 | Rhyolite. |
| RC1135/3 | Rhyolite. Cronebane Pit, Avoca, ?Spain? | RC1135/3 | 0 | Rhyolite. 'Original entry: Rhyolite, Sulphide Minerals' | |
| E61497; COLLNOLC836; | Backside Beck, Cautley area | E61497; COLLNOLC836; | * | 1969 | Rhyolite; Tuff;. |
| E72109; COLLNOIY1103; | BB08. Wasdale Foot, Shap | E72109; COLLNOIY1103; | * | 1998 | Rhyodacite. |
| E72305; COLLNOCT1879; | Buckbarrow Crag, Longsleddale. Sample No. CT 1879. | E72305; COLLNOCT1879; | * | 1998 | Rhyolite. |
| E72293; COLLNOCT1867; | Raven Crag, Longsleddale. Sample No. CT 1867. | E72293; COLLNOCT1867; | * | 1998 | Rhyolite; Tuff;. |
| E72295; COLLNOCT1869; | Goat Scar, Longsleddale. Sample No. CT 1869. | E72295; COLLNOCT1869; | * | 1998 | Rhyolite; Tuff;. |
| E72287; COLLNOCT1861; | Brown Crag, Longsleddale. Sample No. CT 1861. | E72287; COLLNOCT1861; | * | 1998 | Rhyolite; Tuff;. |
| E72370; COLLNOCT1070; | not recorded | E72370; COLLNOCT1070; | * | 1986 | Rhyolite. 'Original entry: Rhyolite' |
| E72363; COLLNOCT1061; | not recorded | E72363; COLLNOCT1061; | * | 1986 | Rhyolite. 'Original entry: Rhyolite' |
| E72364; COLLNOCT1062; | not recorded | E72364; COLLNOCT1062; | * | 1986 | Rhyolite. 'Original entry: Rhyolite' |
| E72365; COLLNOCT1063; | not recorded | E72365; COLLNOCT1063; | * | 1986 | Rhyolite. 'Original entry: Rhyolite' |
| E72359; COLLNOCT1057; | not recorded | E72359; COLLNOCT1057; | * | 1986 | Rhyolite. 'Original entry: Rhyolite' |
| E2701 | Warren Hills, Charnwood. | E2701 | * | Rhyolite. 'Original entry: Rhyolitic Rock.' | |
| E64133; COLLNOKB1133; | Sygun Mine | E64133; COLLNOKB1133; | Rhyolite. 'Original entry: Rhyolite' | ||
| E64134; COLLNOKB1134; | Sygun Mine | E64134; COLLNOKB1134; | Rhyolite. 'Original entry: Rhyolite' | ||
| E64139; COLLNOKB1139; | Cae Loch, Dolgarrog | E64139; COLLNOKB1139; | Rhyolite. 'Original entry: Basic Tuff' | ||
| E63878; COLLNOKB878; | Hafod y porth | E63878; COLLNOKB878; | Rhyolite. 'Original entry: Rhyolite' | ||
| E63319; COLLNOKB319; | Cwmorthin | E63319; COLLNOKB319; | Rhyolite. 'Original entry: Rhyolite Composite' | ||
| E63313; COLLNOKB313; | Llyn Cwm Corseog | E63313; COLLNOKB313; | Rhyolite. 'Original entry: Rhyolite Composite' | ||
| E63314; COLLNOKB314; | Llyn Cwm Corseog | E63314; COLLNOKB314; | Rhyolite. 'Original entry: Rhyolite Composite' | ||
| E63315; COLLNOKB315; | Llyn Cwm Corseog | E63315; COLLNOKB315; | Rhyolite. 'Original entry: Rhyolite Composite' | ||
| E72288; COLLNOCT1862; | Goat Scar, Longsleddale. Sample No. CT 1862. | E72288; COLLNOCT1862; | * | 1998 | Rhyolite; Tuff;. |
| E72289; COLLNOCT1863; | Goat Scar, Longsleddale. Sample No. CT 1863. | E72289; COLLNOCT1863; | * | 1998 | Rhyolite; Tuff;. |
| E72290; COLLNOCT1864; | Goat Scar, Longsleddale. Sample No. CT 1864. | E72290; COLLNOCT1864; | * | 1998 | Rhyolite; Tuff;. |
| E72291; COLLNOCT1865; | Raven Crag, Longsleddale. Sample No. CT 1865. | E72291; COLLNOCT1865; | * | 1998 | Rhyolite; Tuff;. |
| E72292; COLLNOCT1866; | Raven Crag, Longsleddale. Sample No. CT 1866. | E72292; COLLNOCT1866; | * | 1998 | Rhyolite; Tuff;. |
| E72281; COLLNOCT1855; | Raven Crag, Longsleddale. Sample No. CT 1855. | E72281; COLLNOCT1855; | * | 1998 | Rhyolite; Tuff;. |
| E72283; COLLNOCT1857; | Kentmere Pike, Longsleddale. Sample No. CT 1857. | E72283; COLLNOCT1857; | * | 1998 | Rhyolite. |
| E72284; COLLNOCT1858; | Raven Crag, Longsleddale. Sample No. CT 1858. | E72284; COLLNOCT1858; | * | 1998 | Rhyolite; Tuff;. |
| E72285; COLLNOCT1859; | Raven Crag, Longsleddale. Sample No. CT 1859. | E72285; COLLNOCT1859; | * | 1998 | Rhyolite; Tuff;. |
| E72286; COLLNOCT1860; | Snow Cove Gill, Longsleddale. Sample No. CT 1860. | E72286; COLLNOCT1860; | * | 1998 | Rhyolite; Tuff;. |
| E72274; COLLNOCT1848; | River Sprint, Longsleddale. Sample No. CT 1848. | E72274; COLLNOCT1848; | * | 1998 | Rhyolite. |
| E72275; COLLNOCT1849; | River Sprint, Longsleddale. Sample No. CT 1849. | E72275; COLLNOCT1849; | * | 1998 | Rhyolite. |
| E13893 | Lilleshall Quarry, 150 yards N.W. of Church. | E13893 | Rhyolite. 'Original entry: Rhyolite.' | ||
| E63525; COLLNOKB525; | Cocyn Craflwyn | E63525; COLLNOKB525; | Rhyolite. 'Original entry: Rhyolite' | ||
| E63167; COLLNOKB167; | Anafon | E63167; COLLNOKB167; | Rhyolite. 'Original entry: Rhyolite' | ||
| E72269; COLLNOCT1843; | Hallowbank Quarter, Kentmere. Sample No. CT 1843. | E72269; COLLNOCT1843; | * | 1998 | Rhyolite. |
| E72261; COLLNOCT1835; | Ullstone Gill, Kentmere. Sample No. CT 1835. | E72261; COLLNOCT1835; | * | 1998 | Rhyolite. |
| E72262; COLLNOCT1836; | Hallowbank Quarter, Kentmere. Sample No. CT 1836. | E72262; COLLNOCT1836; | * | 1998 | Rhyolite. |
| E63526; COLLNOKB526; | Castell Emrys | E63526; COLLNOKB526; | Rhyolite. 'Original entry: Rhyolite' | ||
| E63527; COLLNOKB527; | Crib Goch, nr Pyg track | E63527; COLLNOKB527; | Rhyolite. 'Original entry: Rhyolite' | ||
| E63528; COLLNOKB528; | Crib Goch, nr Pyg track | E63528; COLLNOKB528; | Rhyolite. 'Original entry: Rhyolite' | ||
| E63521; COLLNOKB521; | Parc Hafod y Llan | E63521; COLLNOKB521; | Rhyolite. 'Original entry: Rhyolite' | ||
| E63522; COLLNOKB522; | Parc Hafod y Llan | E63522; COLLNOKB522; | Rhyolite. 'Original entry: Rhyolite' | ||
| E63516; COLLNOKB516; | Craig Cwmdulyn | E63516; COLLNOKB516; | Rhyolite. 'Original entry: Rhyolite' | ||
| E63509; COLLNOKB509; | Clogwyn Mawr, Llanberis | E63509; COLLNOKB509; | Rhyolite. 'Original entry: Rhyolite' | ||
| E63501; COLLNOKB501; | Rhyd Ddu-Llechog | E63501; COLLNOKB501; | Rhyolite. 'Original entry: Rhyolite Composite' | ||
| E2343 | Spinny in field 250 yards south of Beacon Lodge. | E2343 | * | Rhyolite. 'Original entry: Rhyolite.' | |
| E63199; COLLNOKB199; | Conwy Mts., N Pen Sychnant | E63199; COLLNOKB199; | Rhyolite. 'Original entry: Rhyolite' | ||
| E63200; COLLNOKB200; | Allt Wen, Sychnant, track | E63200; COLLNOKB200; | Rhyolite. 'Original entry: Rhyolite' | ||
| E63201; COLLNOKB201; | Sychnant Pass | E63201; COLLNOKB201; | Rhyolite. 'Original entry: Rhyolite' | ||
| E63202; COLLNOKB202; | Pen Maen Bach, nr tunnel | E63202; COLLNOKB202; | Rhyolite. 'Original entry: Rhyolite' | ||
| E63203; COLLNOKB203; | Pen Maen Bach Point | E63203; COLLNOKB203; | Rhyolite. 'Original entry: Rhyolite' | ||
| E12970 | Lilleshall Quarry hoc 10A 15. | E12970 | Rhyolite. 'Original entry: Rhyolite.' | ||
| E63108; COLLNOKB108; | Cwm Idwal/Twll du | E63108; COLLNOKB108; | Rhyolite. 'Original entry: Rhyolite' | ||
| E63109; COLLNOKB109; | Cwm Idwal/Twll du | E63109; COLLNOKB109; | Rhyolite. 'Original entry: Rhyolite' | ||
| E72255; COLLNOCT1829; | Hallowbank Quarter, Kentmere. Sample No. CT 1829. | E72255; COLLNOCT1829; | * | 1998 | Rhyolite; Tuff;. |
| E72256; COLLNOCT1830; | Hallowbank Quarter, Kentmere. Sample No. CT 1830. | E72256; COLLNOCT1830; | * | 1998 | Rhyolite; Tuff;. |
| E72257; COLLNOCT1831; | Ullstone Gill, Kentmere. Sample No. CT 1831. | E72257; COLLNOCT1831; | * | 1998 | Rhyolite; Tuff;. |
| E72258; COLLNOCT1832; | Ullstone Gill, Kentmere. Sample No. CT 1832. | E72258; COLLNOCT1832; | * | 1998 | Rhyolite; Tuff;. |
| E72250; COLLNOCT1824; | Ullstone Gill, Kentmere. Sample No. 1824. | E72250; COLLNOCT1824; | * | 1998 | Rhyolite; Tuff;. |
| E72251; COLLNOCT1825; | Ullstone Gill, Kentmere. Sample No. 1825. | E72251; COLLNOCT1825; | * | 1998 | Rhyolite. |
| E72242; COLLNOCT1816; | Kentmere Pike, Kentmere. Sample No. CT 1816. | E72242; COLLNOCT1816; | * | 1998 | Rhyolite; Tuff;. |
| E72243; COLLNOCT1817; | Kentmere Pike, Kentmere. Sample No. CT 1817. | E72243; COLLNOCT1817; | * | 1998 | Rhyolite; Tuff;. |
| E72246; COLLNOCT1820; | Kentmere Pike, Kentmere. Sample No. CT 1820. | E72246; COLLNOCT1820; | * | 1998 | Rhyolite; Tuff;. |
| E72247; COLLNOCT1821; | Kentmere Pike, Kentmere. Sample No. CT 1821. | E72247; COLLNOCT1821; | * | 1998 | Rhyolite; Tuff;. |
| E72238; COLLNOCT1812; | Brown Howe, Kentmere. Sample No. CT 1812. | E72238; COLLNOCT1812; | * | 1998 | Rhyolite; Tuff;. |
| E72239; COLLNOCT1813; | Brown Howe, Kentmere. Sample No. CT 1813. | E72239; COLLNOCT1813; | * | 1998 | Rhyolite; Tuff;. |
| E19372 | Lawrence Hill Quarry, Wellington. | E19372 | Rhyolite. 'Original entry: Rhyolite.' | ||
| E63497; E63497/A; E63497/B; E63497/C; COLLNOKB497; | Rhyd Ddu-Llechog | E63497; E63497/A; E63497/B; E63497/C; COLLNOKB497; | Rhyolite. 'Original entry: Rhyolite Composite' | ||
| E63297; COLLNOKB297; | Nant Mor/Croesor | E63297; COLLNOKB297; | Rhyodacite. 'Original entry: Feldspar Porphyry Composite' | ||
| E63299; COLLNOKB299; | Nant Mor/Croesor | E63299; COLLNOKB299; | Rhyodacite. 'Original entry: Feldspar Porphyry Composite' | ||
| E63290; COLLNOKB290; | Nant Mor/Croesor | E63290; COLLNOKB290; | Rhyodacite. 'Original entry: Feldspar Porphyry Composite' | ||
| E63291; COLLNOKB291; | Nant Mor/Croesor | E63291; COLLNOKB291; | Rhyodacite. 'Original entry: Feldspar Porphyry Composite' | ||
| E63279; COLLNOKB279; | Nant Mor/Croesor | E63279; COLLNOKB279; | Rhyolite. 'Original entry: Rhyolite' | ||
| E63280; COLLNOKB280; | Nant Mor/Croesor | E63280; COLLNOKB280; | Rhyolite. 'Original entry: Rhyolite' | ||
| E63480; COLLNOKB480; | Y Garn | E63480; COLLNOKB480; | Rhyodacite. 'Original entry: Feldspar Porphyry' | ||
| E63481; COLLNOKB481; | Y Garn | E63481; COLLNOKB481; | Rhyodacite. 'Original entry: Feldspar Porphyry' | ||
| E63483; COLLNOKB483; | Rhyd Ddu | E63483; COLLNOKB483; | Rhyolite. 'Original entry: Rhyolite' | ||
| E63050; COLLNOKB50; | Bank of Afon Anafon | E63050; COLLNOKB50; | Rhyolite. 'Original entry: Rhyolite' | ||
| E63273; COLLNOKB273; | Nant Mor/Croesor | E63273; COLLNOKB273; | Rhyodacite. 'Original entry: Feldspar Porphyry Composite' | ||
| E63274; COLLNOKB274; | Nant Mor/Croesor | E63274; COLLNOKB274; | Rhyodacite. 'Original entry: Feldspar Porphyry Composite' | ||
| E63275; COLLNOKB275; | Nant Mor/Croesor | E63275; COLLNOKB275; | Rhyodacite. 'Original entry: Feldspar Porphyry Composite' | ||
| E63276; COLLNOKB276; | Nant Mor/Croesor | E63276; COLLNOKB276; | Rhyodacite. 'Original entry: Feldspar Porphyry Composite' | ||
| E63268; COLLNOKB268; | Nant Mor/Croesor | E63268; COLLNOKB268; | Rhyodacite. 'Original entry: Feldspar Porphyry Composite' | ||
| E63269; COLLNOKB269; | Nant Mor/Croesor | E63269; COLLNOKB269; | Rhyodacite. 'Original entry: Feldspar Porphyry Composite' | ||
| E63270; COLLNOKB270; | Nant Mor/Croesor | E63270; COLLNOKB270; | Rhyodacite. 'Original entry: Feldspar Porphyry Composite' | ||
| E63271; COLLNOKB271; | Nant Mor/Croesor | E63271; COLLNOKB271; | Rhyodacite. 'Original entry: Feldspar Porphyry Composite' | ||
| E63043; COLLNOKB43; | Afon Anafon | E63043; COLLNOKB43; | Rhyolite. 'Original entry: Rhyolite' | ||
| E63261; COLLNOKB261; | Carnedd y Cribau | E63261; COLLNOKB261; | Rhyolite. 'Original entry: Rhyolite' | ||
| E63251; COLLNOKB251; | Gallt y Wenallt | E63251; COLLNOKB251; | Rhyolite. 'Original entry: Rhyolite' | ||
| E63456; COLLNOKB456; | Rhydiadau Diwainedd | E63456; COLLNOKB456; | Rhyodacite. 'Original entry: Feldspar Porphyry Composite' | ||
| E63457; COLLNOKB457; | Castell | E63457; COLLNOKB457; | Rhyolite. 'Original entry: Rhyolite' | ||
| E63458; COLLNOKB458; | Castell | E63458; COLLNOKB458; | Rhyolite. 'Original entry: Rhyolite' | ||
| E63459; COLLNOKB459; | Castell | E63459; COLLNOKB459; | Rhyolite. 'Original entry: Rhyolite' | ||
| E63460; COLLNOKB460; | Castell, Clogwyn yr Wylfa | E63460; COLLNOKB460; | Rhyolite. 'Original entry: Rhyolite' | ||
| E63450; COLLNOKB450; | Yr Arddu, Cefn y cerrig | E63450; COLLNOKB450; | Rhyolite. 'Original entry: Rhyolite' | ||
| E63451; COLLNOKB451; | Bwlch Ehediad | E63451; COLLNOKB451; | Rhyolite. 'Original entry: Rhyolite' | ||
| E63452; COLLNOKB452; | Bwlch Ehediad | E63452; COLLNOKB452; | Rhyolite. 'Original entry: Rhyolite' | ||
| E63453; COLLNOKB453; | Bwlch Ehediad | E63453; COLLNOKB453; | Rhyolite. 'Original entry: Rhyolite' | ||
| E63454; COLLNOKB454; | Bwlch Ehediad | E63454; COLLNOKB454; | Rhyolite. 'Original entry: Rhyolite' | ||
| E63455; COLLNOKB455; | Rhydiadau Diwainedd | E63455; COLLNOKB455; | Rhyodacite. 'Original entry: Feldspar Porphyry Composite' | ||
| E63444; COLLNOKB444; | Yr Arddu, Llyn yr Arddu | E63444; COLLNOKB444; | Rhyolite. 'Original entry: Rhyolite' | ||
| E63445; COLLNOKB445; | Yr Arddu | E63445; COLLNOKB445; | Rhyolite. 'Original entry: Rhyolite' | ||
| E63446; COLLNOKB446; | Yr Arddu, Craig y myllt | E63446; COLLNOKB446; | Rhyolite. 'Original entry: Rhyolite' | ||
| N1009; COLLNORYF158; | BH4 (BGS Scot, GW Reg No. 93/6), Machrie area, West Arran | N1009; COLLNORYF158; | * | 1998 | Rhyolite. 'Original entry: Felsitic Rhyolite' |
| N1010; COLLNORYF159; | BH3 (BGS Scot, GW Reg No. 93/5), Machrie area, West Arran | N1010; COLLNORYF159; | * | 1998 | Rhyolite. 'Original entry: Felsitic Rhyolite' |
| E63196; COLLNOKB196; | Conwy Mt. stone quarries | E63196; COLLNOKB196; | Rhyolite. 'Original entry: Rhyolite' | ||
| E63197; COLLNOKB197; | Conwy Mt. stone quarries | E63197; COLLNOKB197; | Rhyolite. 'Original entry: Rhyolite' | ||
| E63198; COLLNOKB198; | Pen Maen Bach | E63198; COLLNOKB198; | Rhyolite. 'Original entry: Rhyolite' | ||
| E13896 | Lilleshall Quarry, 150 yards N.W. of church. | E13896 | Rhyolite. 'Original entry: Rhyolite.' | ||
| E63474; COLLNOKB474; | Beddgelert forest | E63474; COLLNOKB474; | Rhyolite. 'Original entry: Rhyolite' | ||
| E63272; COLLNOKB272; | Nant Mor/Croesor | E63272; COLLNOKB272; | Rhyodacite. 'Original entry: Feldspar Porphyry Composite' | ||
| E63263; COLLNOKB263; | Pen y Pass | E63263; COLLNOKB263; | Rhyolite. 'Original entry: Rhyolite' | ||
| E63256; COLLNOKB256; | Bylchau Teyrn | E63256; COLLNOKB256; | Rhyolite. 'Original entry: Rhyolite' | ||
| E63257; COLLNOKB257; | Bylchau Teyrn | E63257; COLLNOKB257; | Rhyolite. 'Original entry: Rhyolite' | ||
| E63258; COLLNOKB258; | Carnedd y Cribau | E63258; COLLNOKB258; | Rhyolite. 'Original entry: Rhyolite' | ||
| E63259; COLLNOKB259; | Carnedd y Cribau | E63259; COLLNOKB259; | Rhyolite. 'Original entry: Rhyolite' | ||
| E63260; COLLNOKB260; | Carnedd y Cribau | E63260; COLLNOKB260; | Rhyolite. 'Original entry: Rhyolite' | ||
| E63475; COLLNOKB475; | Beddgelert forest | E63475; COLLNOKB475; | Rhyolite. 'Original entry: Rhyolite' | ||
| E63476; COLLNOKB476; | Beddgelert forest | E63476; COLLNOKB476; | Rhyolite. 'Original entry: Rhyolite' | ||
| E63470; COLLNOKB470; | Moel yr ogof | E63470; COLLNOKB470; | Rhyolite. 'Original entry: Rhyolite' | ||
| E63471; COLLNOKB471; | Moel yr ogof | E63471; COLLNOKB471; | Rhyolite. 'Original entry: Rhyolite' | ||
| E63472; COLLNOKB472; | Moel lefn | E63472; COLLNOKB472; | Rhyolite. 'Original entry: Rhyolite' | ||
| E63464; COLLNOKB464; | Rhydiau diwaunedd | E63464; COLLNOKB464; | Rhyodacite. 'Original entry: Feldspar Porphyry Composite' | ||
| E63465; COLLNOKB465; | Moel Hebog | E63465; COLLNOKB465; | Rhyolite. 'Original entry: Rhyolite' | ||
| E63466; COLLNOKB466; | Moel Hebog | E63466; COLLNOKB466; | Rhyolite. 'Original entry: Rhyolite' | ||
| E63338; COLLNOKB338; | Bwlch y rhydd | E63338; COLLNOKB338; | Rhyodacite. 'Original entry: Feldspar Porphyry Composite' | ||
| E2702 | Warren Hills, Charnwood. | E2702 | * | Rhyolite. 'Original entry: Rhyolite.' | |
| E12961 | Lilleshall Quarry 30 yards N.E. of Monument. | E12961 | Rhyolite. 'Original entry: Brecciated ?Rhyolite.' | ||
| E64413; COLLNOTL44; | Forestry Office, Be. y C | E64413; COLLNOTL44; | Rhyolite. 'Original entry: Rhyolite' | ||
| E64409; COLLNOTL40; | Blaen y Nant, Llanb. Pass | E64409; COLLNOTL40; | Rhyolite. 'Original entry: Rhyolite' | ||
| E63041; COLLNOKB41; | Afon Anafon | E63041; COLLNOKB41; | Rhyolite. 'Original entry: Rhyolite' | ||
| E63042; COLLNOKB42; | S. bank, Afon Anafon | E63042; COLLNOKB42; | Rhyolite. 'Original entry: Rhyolite' | ||
| E64406; COLLNOTL37; | Nant Peris | E64406; COLLNOTL37; | Rhyolite. 'Original entry: Rhyolite' | ||
| E64407; COLLNOTL38; | Nant Peris | E64407; COLLNOTL38; | Rhyolite. 'Original entry: Rhyolite' | ||
| E64408; COLLNOTL39; | Blaen y Nant, Llanb. Pass | E64408; COLLNOTL39; | Rhyolite. 'Original entry: Rhyolite' | ||
| E63347; COLLNOKB347; | Cnicht | E63347; COLLNOKB347; | Rhyodacite. 'Original entry: Feldspar Porphyry Composite' | ||
| E63348; COLLNOKB348; | Ceseiliau Moelwyn | E63348; COLLNOKB348; | Rhyolite. 'Original entry: Rhyolite Composite' | ||
| E63349; COLLNOKB349; | Ceseiliau Moelwyn | E63349; COLLNOKB349; | Rhyolite. 'Original entry: Rhyolite' | ||
| E63351; COLLNOKB351; | Ceseiliau Moelwyn | E63351; COLLNOKB351; | Rhyolite. 'Original entry: Rhyolite Composite' | ||
| E63352; COLLNOKB352; | Ceseiliau Moelwyn | E63352; COLLNOKB352; | Rhyolite. 'Original entry: Rhyolite Composite' | ||
| E63341; COLLNOKB341; | LLyn Croesor | E63341; COLLNOKB341; | Rhyodacite. 'Original entry: Feldspar Porphyry Composite' | ||
| E63342; COLLNOKB342; | LLyn Croesor | E63342; COLLNOKB342; | Rhyodacite. 'Original entry: Feldspar Porphyry Composite' | ||
| E63344; COLLNOKB344; | Cnicht | E63344; COLLNOKB344; | Rhyodacite. 'Original entry: Feldspar Porphyry Composite' | ||
| E63346; COLLNOKB346; | Cnicht | E63346; COLLNOKB346; | Rhyodacite. 'Original entry: Feldspar Porphyry Composite' | ||
| E63534; COLLNOKB534; | Moel Ddu | E63534; COLLNOKB534; | Rhyolite. 'Original entry: Rhyolite' | ||
| E63535; COLLNOKB535; | Moel Ddu | E63535; COLLNOKB535; | Rhyolite. 'Original entry: Rhyolite' | ||
| E63529; COLLNOKB529; | Crib Goch, nr Pyg track | E63529; COLLNOKB529; | Rhyolite. 'Original entry: Rhyolite' | ||
| E63530; COLLNOKB530; | Crib Goch, nr Pyg track | E63530; COLLNOKB530; | Rhyolite. 'Original entry: Rhyolite' | ||
| E63523; COLLNOKB523; | Parc Hafod y Llan | E63523; COLLNOKB523; | Rhyolite. 'Original entry: Rhyolite' | ||
| E63524; COLLNOKB524; | Cocyn Craflwyn | E63524; COLLNOKB524; | Rhyolite. 'Original entry: Rhyolite' | ||
| E64209; COLLNOKB1209; | Craflwyn Hall | E64209; COLLNOKB1209; | Rhyolite. 'Original entry: Rhyolite' | ||
| E64206; COLLNOKB1206; | Hafod y Porth Farm | E64206; COLLNOKB1206; | Rhyolite. 'Original entry: Rhyolite' | ||
| E64207; COLLNOKB1207; | Hafod y Porth Farm | E64207; COLLNOKB1207; | Rhyolite. 'Original entry: Rhyolite' | ||
| E64208; COLLNOKB1208; | Craflwyn Hall | E64208; COLLNOKB1208; | Rhyolite. 'Original entry: Rhyolite' | ||
| E1837 | Scar near lane junction, Beacon Hill. | E1837 | Rhyolite; Tuff;. 'Original entry: Rhyolite.' | ||
| E1836 | Alderman's Haw. | E1836 | Rhyolite; Tuff;. 'Original entry: Rhyolite' | ||
| E64244; COLLNOKB1244; | Forestry loc., Moel Hebog | E64244; COLLNOKB1244; | Rhyolite. 'Original entry: Rhyolite' | ||
| E64245; COLLNOKB1245; | Forestry loc.,Moel Hebog | E64245; COLLNOKB1245; | Rhyolite. 'Original entry: Rhyolite' | ||
| E64238; COLLNOKB1238; | About 50m north of old lead mine | E64238; COLLNOKB1238; | Rhyolite. 'Original entry: Rhyolite' | ||
| E63142; COLLNOKB142; | Waen Bryn Gwenith | E63142; COLLNOKB142; | Rhyolite. 'Original entry: Rhyolite' | ||
| E63144; COLLNOKB144; | Dolgarrog | E63144; COLLNOKB144; | Rhyolite. 'Original entry: Rhyolite' | ||
| E63140; COLLNOKB140; | Waen Bryn Gwenith | E63140; COLLNOKB140; | Rhyolite. 'Original entry: Rhyolite' | ||
| E63141; COLLNOKB141; | Waen Bryn Gwenith | E63141; COLLNOKB141; | Rhyolite. 'Original entry: Rhyolite' | ||
| E63626; COLLNOKB626; | Rhwn Gddwyafon | E63626; COLLNOKB626; | Rhyolite. 'Original entry: Rhyolite' | ||
| E63627; COLLNOKB627; | Capel Cwm Pennant | E63627; COLLNOKB627; | Rhyolite. 'Original entry: Rhyolite' | ||
| E63615; COLLNOKB615; | Crib y ddysgl | E63615; COLLNOKB615; | Rhyolite. 'Original entry: Rhyolite' | ||
| E63607; COLLNOKB607; | Cwm Fynhadeg Isaf | E63607; COLLNOKB607; | Rhyolite. 'Original entry: Rhyolite Clast' | ||
| E63608; COLLNOKB608; | Cwm Fynhadeg Isaf | E63608; COLLNOKB608; | Rhyolite. 'Original entry: Rhyolite Clast' | ||
| E63609; COLLNOKB609; | Cwm Fynhadeg Isaf | E63609; COLLNOKB609; | Rhyolite. 'Original entry: Rhyolite Clast' | ||
| E63603; COLLNOKB603; | Cwm Fynhadeg Isaf | E63603; COLLNOKB603; | Rhyolite. 'Original entry: Rhyolite' | ||
| E63604; COLLNOKB604; | Cwm Fynhadeg Isaf | E63604; COLLNOKB604; | Rhyolite. 'Original entry: Rhyolite' | ||
| E63220; COLLNOKB220; | Foel Lwyd | E63220; COLLNOKB220; | Rhyolite. 'Original entry: Rhyolite' | ||
| E63221; COLLNOKB221; | Foel Lwyd, above sheepfold | E63221; COLLNOKB221; | Rhyolite. 'Original entry: Rhyolite' | ||
| E63222; COLLNOKB222; | Foel Lwyd, nr sheepfold | E63222; COLLNOKB222; | Rhyolite. 'Original entry: Rhyolite' | ||
| E63223; COLLNOKB223; | Foel Lwyd, nr sheepfold | E63223; COLLNOKB223; | Rhyolite. 'Original entry: Rhyolite' | ||
| E63224; COLLNOKB224; | Foel Lwyd, nr sheepfold | E63224; COLLNOKB224; | Rhyolite. 'Original entry: Rhyolite' | ||
| E64310; COLLNOKB1310; | Pen Morfa | E64310; COLLNOKB1310; | Rhyolite. 'Original entry: Rhyolite' | ||
| E63218; COLLNOKB218; | Foel Lwyd | E63218; COLLNOKB218; | Rhyolite. 'Original entry: Rhyolite' | ||
| E63219; COLLNOKB219; | Foel Lwyd | E63219; COLLNOKB219; | Rhyolite. 'Original entry: Rhyolite' | ||
| E63204; COLLNOKB204; | Dwygyfylchi, NW Foel Las | E63204; COLLNOKB204; | Rhyolite. 'Original entry: Rhyolite' | ||
| E63011; COLLNOKB11; | Bera Bach, nr. Drosgl pass | E63011; COLLNOKB11; | Rhyolite. 'Original entry: Rhyolite' | ||
| E64309; COLLNOKB1309; | Tan yr Allt | E64309; COLLNOKB1309; | Rhyolite. 'Original entry: Rhyolite' | ||
| E64459; COLLNOTL90; | N. ridge of Tryfan | E64459; COLLNOTL90; | Rhyolite. 'Original entry: Rhyolite' | ||
| E64460; COLLNOTL91; | N. ridge of Tryfan | E64460; COLLNOTL91; | Rhyolite. 'Original entry: Rhyolite' | ||
| E63592; COLLNOKB592; | Braich tu du | E63592; COLLNOKB592; | Rhyolite. 'Original entry: Rhyolite' | ||
| E63585; COLLNOKB585; | Nant Peris, S side of road | E63585; COLLNOKB585; | Rhyolite. 'Original entry: Rhyolite' | ||
| E63586; COLLNOKB586; | W of Clogwyn y geifr | E63586; COLLNOKB586; | Rhyolite. 'Original entry: Rhyolite' | ||
| E63587; COLLNOKB587; | Cwm Idwal | E63587; COLLNOKB587; | Rhyolite. 'Original entry: Rhyolite' | ||
| E63589; COLLNOKB589; | Cwm Idwal | E63589; COLLNOKB589; | Rhyolite. 'Original entry: Rhyolite' | ||
| E63578; COLLNOKB578; | Hafodydd brithion | E63578; COLLNOKB578; | Rhyolite. 'Original entry: Rhyolite' | ||
| E63579; COLLNOKB579; | Bryn Gwynant | E63579; COLLNOKB579; | Rhyolite. 'Original entry: Rhyolite' | ||
| E63580; COLLNOKB580; | Hen gapel | E63580; COLLNOKB580; | Rhyolite. 'Original entry: Rhyolite' | ||
| E63581; COLLNOKB581; | Cwm Patrig | E63581; COLLNOKB581; | Rhyolite. 'Original entry: Rhyolite' | ||
| E63582; COLLNOKB582; | Tan yr allt, Nant Peris | E63582; COLLNOKB582; | Rhyolite. 'Original entry: Rhyolite' | ||
| E63583; COLLNOKB583; | Cwm Glas Bach, Nant Peris | E63583; COLLNOKB583; | Rhyolite. 'Original entry: Rhyolite' | ||
| E63584; COLLNOKB584; | nr Cyrn Glas | E63584; COLLNOKB584; | Rhyolite. 'Original entry: Rhyolite' | ||
| E63571; COLLNOKB571; | Afon cors-y-celyn | E63571; COLLNOKB571; | Rhyolite. 'Original entry: Rhyolite' | ||
| E64217; COLLNOKB1217; | Croesor | E64217; COLLNOKB1217; | Rhyolite. 'Original entry: Rhyolite Composite' | ||
| E64349; COLLNOKB1349; | Cwm Penmachno - stream section | E64349; COLLNOKB1349; | Rhyolite. 'Original entry: Rhyolite (Gamallt)' | ||
| E64350; COLLNOKB1350; | Penmachno slate quarry | E64350; COLLNOKB1350; | Rhyolite. 'Original entry: Rhyolite (Gamallt)' | ||
| E64303; COLLNOKB1303; | Cae Uchaf | E64303; COLLNOKB1303; | Rhyolite. 'Original entry: Rhyolite' | ||
| E64302; COLLNOKB1302; | Moelwyn Bach | E64302; COLLNOKB1302; | Rhyolite. 'Original entry: Rhyolite' | ||
| E64296; COLLNOKB1296; | South of Carreg y Fron | E64296; COLLNOKB1296; | Rhyolite. 'Original entry: Rhyolite Dyke' | ||
| E64301; COLLNOKB1301; | Moelwyn Bach | E64301; COLLNOKB1301; | Rhyolite. 'Original entry: Rhyolite' | ||
| E64295; COLLNOKB1295; | South of Llynnan Gamallt | E64295; COLLNOKB1295; | Rhyolite. 'Original entry: Rhyolite' | ||
| E64283; COLLNOKB1283; | Llyn y Drum | E64283; COLLNOKB1283; | Rhyolite. 'Original entry: Rhyolite' | ||
| E63448; COLLNOKB448; | Yr Arddu, Cefn y cerrig | E63448; COLLNOKB448; | Rhyolite. 'Original entry: Rhyolite' | ||
| E63449; COLLNOKB449; | Yr Arddu, Cefn y cerrig | E63449; COLLNOKB449; | Rhyolite. 'Original entry: Rhyolite' | ||
| E63180; COLLNOKB180; | Braich tu du type section | E63180; COLLNOKB180; | Rhyolite. 'Original entry: Rhyolite' | ||
| E63173; COLLNOKB173; | Braich tu du type section | E63173; COLLNOKB173; | Rhyolite. 'Original entry: Rhyolite' | ||
| E63174; COLLNOKB174; | Braich tu du type section | E63174; COLLNOKB174; | Rhyolite. 'Original entry: Rhyolite' | ||
| E63175; COLLNOKB175; | Braich tu du type section | E63175; COLLNOKB175; | Rhyolite. 'Original entry: Rhyolite' | ||
| E63176; COLLNOKB176; | Braich tu du type section | E63176; COLLNOKB176; | Rhyolite. 'Original entry: Rhyolite' | ||
| E63168; COLLNOKB168; | Anafon | E63168; COLLNOKB168; | Rhyolite. 'Original entry: Rhyolite' | ||
| E63169; COLLNOKB169; | Anafon | E63169; COLLNOKB169; | Rhyolite. 'Original entry: Rhyolite' | ||
| E63572; COLLNOKB572; | Afon cors-y-celyn | E63572; COLLNOKB572; | Rhyolite. 'Original entry: Rhyolite' | ||
| E63573; COLLNOKB573; | Afon cors-y-celyn | E63573; COLLNOKB573; | Rhyolite. 'Original entry: Rhyolite' | ||
| E63574; COLLNOKB574; | Cors-y-celyn | E63574; COLLNOKB574; | Rhyolite. 'Original entry: Rhyolite' | ||
| E63575; COLLNOKB575; | Moel Meirch | E63575; COLLNOKB575; | Rhyolite. 'Original entry: Rhyolite' | ||
| E63576; COLLNOKB576; | E of cors-y-celyn | E63576; COLLNOKB576; | Rhyolite. 'Original entry: Rhyolite' | ||
| E63577; COLLNOKB577; | SE of cors-y-celyn | E63577; COLLNOKB577; | Rhyolite. 'Original entry: Rhyolite' | ||
| E63566; COLLNOKB566; | Craig yr hendre | E63566; COLLNOKB566; | Rhyolite. 'Original entry: Rhyolite' | ||
| E63567; COLLNOKB567; | Craig yr hendre | E63567; COLLNOKB567; | Rhyolite. 'Original entry: Rhyolite' | ||
| E63570; COLLNOKB570; | Maes-ysgoboriau | E63570; COLLNOKB570; | Rhyolite. 'Original entry: Rhyolite' | ||
| E14189 | Fullbrook Brickworks one mile south of Walsall. | E14189 | * | Rhyolite. 'Original entry: Rhyolite' | |
| E63165; COLLNOKB165; | Anafon | E63165; COLLNOKB165; | Rhyolite. 'Original entry: Rhyolite' | ||
| E63166; COLLNOKB166; | Anafon | E63166; COLLNOKB166; | Rhyolite. 'Original entry: Rhyolite' | ||
| E63692; COLLNOKB692; | Cae canol | E63692; COLLNOKB692; | Rhyolite. 'Original entry: Rhyolite' | ||
| E63693; COLLNOKB693; | Cae canol | E63693; COLLNOKB693; | Rhyolite. 'Original entry: Rhyolite' | ||
| E64286; COLLNOKB1286; | North of Craig y Garreg Lwyd | E64286; COLLNOKB1286; | Rhyolite. 'Original entry: Rhyolite' | ||
| E64282; COLLNOKB1282; | Llyn y Drum | E64282; COLLNOKB1282; | Rhyolite. 'Original entry: Rhyolite' | ||
| E64278; COLLNOKB1278; | Foel Gron quarry | E64278; COLLNOKB1278; | Rhyolite. 'Original entry: Rhyolite' | ||
| E63884; COLLNOKB884; | Hafod y porth | E63884; COLLNOKB884; | Rhyolite. 'Original entry: Rhyolite' | ||
| E64272; COLLNOKB1272; | South of Cwt y Bugail | E64272; COLLNOKB1272; | Rhyolite. 'Original entry: Rhyolite' | ||
| E64274; COLLNOKB1274; | Upper end of Cwm Teigl | E64274; COLLNOKB1274; | Rhyolite. 'Original entry: Rhyolite' | ||
| E64275; COLLNOKB1275; | Carreg y Fron | E64275; COLLNOKB1275; | Rhyolite. 'Original entry: Rhyolite' | ||
| E64266; COLLNOKB1266; | South South-West of Cwt y Bugail quarry | E64266; COLLNOKB1266; | Rhyolite. 'Original entry: Rhyolite' | ||
| E64267; COLLNOKB1267; | Nr track South of Cwt y Bugail | E64267; COLLNOKB1267; | Rhyolite. 'Original entry: Rhyolite' | ||
| E64264; COLLNOKB1264; | West of Cwt y Bugail quarry | E64264; COLLNOKB1264; | Rhyolite. 'Original entry: Rhyolite' | ||
| E63252; COLLNOKB252; | Gallt y Wenallt | E63252; COLLNOKB252; | Rhyolite. 'Original entry: Rhyolite' | ||
| E63253; COLLNOKB253; | Gallt y Wenallt | E63253; COLLNOKB253; | Rhyolite. 'Original entry: Rhyolite' | ||
| E63248; COLLNOKB248; | Gallt y Wenallt | E63248; COLLNOKB248; | Rhyolite. 'Original entry: Rhyolite' | ||
| E63249; COLLNOKB249; | Gallt y Wenallt | E63249; COLLNOKB249; | Rhyolite. 'Original entry: Rhyolite' | ||
| E63250; COLLNOKB250; | Gallt y Wenallt | E63250; COLLNOKB250; | Rhyolite. 'Original entry: Rhyolite' | ||
| E63237; COLLNOKB237; | Cae Coch area, forest rd. | E63237; COLLNOKB237; | Rhyolite. 'Original entry: Rhyolite' | ||
| E63238; COLLNOKB238; | Cae Coch area, forest rd. | E63238; COLLNOKB238; | Rhyolite. 'Original entry: Rhyolite' | ||
| E63239; COLLNOKB239; | Dolgarrog, Afon Ddug | E63239; COLLNOKB239; | Rhyolite. 'Original entry: Rhyolite' | ||
| E63240; COLLNOKB240; | Cae Coch, forest road | E63240; COLLNOKB240; | Rhyolite. 'Original entry: Rhyolite' | ||
| E64262; COLLNOKB1262; | Yr Arddu | E64262; COLLNOKB1262; | Rhyolite. 'Original entry: Rhyolite' | ||
| E64263; COLLNOKB1263; | West of Cwt y Bugail quarry | E64263; COLLNOKB1263; | Rhyolite. 'Original entry: Rhyolite' | ||
| E64257; COLLNOKB1257; | Clogwyn d,ur Arddu | E64257; COLLNOKB1257; | Rhyolite. 'Original entry: Rhyolite' | ||
| E64258; COLLNOKB1258; | Clogwyn d'ur Arddu | E64258; COLLNOKB1258; | Rhyolite. 'Original entry: Rhyolite' | ||
| E64248; COLLNOKB1248; | Forestry loc., Moel Hebog | E64248; COLLNOKB1248; | Rhyolite. 'Original entry: Rhyolite' | ||
| E64249; COLLNOKB1249; | WALES. Snowdon (119) | E64249; COLLNOKB1249; | Rhyolite. 'Original entry: Rhyolite' | ||
| E64250; COLLNOKB1250; | Mynydd Sygun | E64250; COLLNOKB1250; | Rhyolite. 'Original entry: Rhyolite' | ||
| E64242; COLLNOKB1242; | Y Cribau | E64242; COLLNOKB1242; | Rhyolite. 'Original entry: Rhyolite' | ||
| E64243; COLLNOKB1243; | Y Cribau | E64243; COLLNOKB1243; | Rhyolite. 'Original entry: Rhyolite' | ||
| E63945; COLLNOKB945; | Crib Goch | E63945; COLLNOKB945; | Rhyolite. 'Original entry: Rhyolite' | ||
| E63943; COLLNOKB943; | Cwm Glas | E63943; COLLNOKB943; | Rhyolite. 'Original entry: Rhyolite' | ||
| E63944; COLLNOKB944; | Crib Goch | E63944; COLLNOKB944; | Rhyolite. 'Original entry: Rhyolite' | ||
| E63639; COLLNOKB639; | Moel Perfedd | E63639; COLLNOKB639; | Rhyolite. 'Original entry: Rhyolite' | ||
| E63640; COLLNOKB640; | Moel Perfedd | E63640; COLLNOKB640; | Rhyolite. 'Original entry: Rhyolite' | ||
| E63641; COLLNOKB641; | Y Dduallt | E63641; COLLNOKB641; | Rhyolite. 'Original entry: Rhyolite' | ||
| E63642; COLLNOKB642; | Y Dduallt | E63642; COLLNOKB642; | Rhyolite. 'Original entry: Rhyolite' | ||
| E63643; COLLNOKB643; | N of Ty Mawr | E63643; COLLNOKB643; | Rhyolite. 'Original entry: Rhyolite' | ||
| E63371; COLLNOKB371; | Croesor | E63371; COLLNOKB371; | Rhyodacite. 'Original entry: Feldspar Porphyry Composite' | ||
| E63374; COLLNOKB374; | Croesor | E63374; COLLNOKB374; | Rhyodacite. 'Original entry: Feldspar Porphyry Composite' | ||
| E63368; COLLNOKB368; | Cnicht | E63368; COLLNOKB368; | Rhyodacite. 'Original entry: Feldspar Porphyry Composite' | ||
| E63369; COLLNOKB369; | Cnicht | E63369; COLLNOKB369; | Rhyodacite. 'Original entry: Feldspar Porphyry Composite' | ||
| E63370; COLLNOKB370; | Garregelldrem | E63370; COLLNOKB370; | Rhyodacite. 'Original entry: Feldspar Porphyry Composite' | ||
| E63359; COLLNOKB359; | Ceseiliau Moelwyn | E63359; COLLNOKB359; | Rhyolite. 'Original entry: Rhyolite Composite' | ||
| E18177 | Erratic boulder 7'x3x2 in lane at point 500 yards W.N.W. of St. James Church, Churchill, | E18177 | * | Rhyolite. 'Original entry: Rhyolitic Tuff' | |
| E63363; COLLNOKB363; | Garregelldrem | E63363; COLLNOKB363; | Rhyolite. 'Original entry: Rhyolite Composite' | ||
| E63364; COLLNOKB364; | Manod Quarry | E63364; COLLNOKB364; | Rhyodacite. 'Original entry: Feldspar Porphyry' | ||
| E63358; COLLNOKB358; | Ceseiliau Moelwyn | E63358; COLLNOKB358; | Rhyolite. 'Original entry: Rhyolite Composite' | ||
| E63434; COLLNOKB434; | Ramsey | E63434; COLLNOKB434; | Rhyolite. 'Original entry: Porphyritic Rhyolite' | ||
| E63440; COLLNOKB440; | Yr Arddu | E63440; COLLNOKB440; | Rhyolite. 'Original entry: Rhyolite' | ||
| E63441; COLLNOKB441; | Yr Arddu | E63441; COLLNOKB441; | Rhyolite. 'Original entry: Rhyolite' | ||
| E63443; COLLNOKB443; | Yr Arddu | E63443; COLLNOKB443; | Rhyolite. 'Original entry: Rhyolite' | ||
| E63427; COLLNOKB427; | Fishguard | E63427; COLLNOKB427; | Rhyodacite. 'Original entry: Rhyodacite' | ||
| E63429; COLLNOKB429; | Fishguard | E63429; COLLNOKB429; | Rhyolite. 'Original entry: Rhyolite' | ||
| E63430; COLLNOKB430; | Fishguard | E63430; COLLNOKB430; | Rhyolite. 'Original entry: Rhyolite' | ||
| E63431; COLLNOKB431; | Fishguard | E63431; COLLNOKB431; | Rhyolite. 'Original entry: Rhyolite' | ||
| E63433; COLLNOKB433; | Ramsey | E63433; COLLNOKB433; | Rhyolite. 'Original entry: Porphyritic Rhyolite' | ||
| E72989 | Calf Cove | E72989 | * | 1989 | Rhyolite. 'Original entry: Glassy Rhyolite' |
| E63414; COLLNOKB414; | Arans | E63414; COLLNOKB414; | Rhyolite. 'Original entry: Rhyolite' | ||
| E63415; COLLNOKB415; | Arans | E63415; COLLNOKB415; | Rhyolite. 'Original entry: Rhyolite' | ||
| E63413; COLLNOKB413; | Arans | E63413; COLLNOKB413; | Rhyolite. 'Original entry: Rhyolite' | ||
| E63393; COLLNOKB393; | Lleyn | E63393; COLLNOKB393; | Rhyolite. 'Original entry: Rhyolite' | ||
| N200; MRPROGKLM1101; | Glen Devon area | N200; MRPROGKLM1101; | *; *; | 1988 | Rhyodacite. 'Original entry: Lava' |
| S99995; MRPROGKLM1120; | Glen Devon area | S99995; MRPROGKLM1120; | *; *; | 1988 | Rhyodacite; Tuff;. 'Original entry: Rhyodacite' |
| S99996; MRPROGKLM1121; | Glen Devon area | S99996; MRPROGKLM1121; | *; *; | 1988 | Rhyodacite. 'Original entry: Rhyodacite' |
| E72683; COLLNOCT1930; | South of Buckborrow, Longsleddale. | E72683; COLLNOCT1930; | *; *; | 1999 | Rhyolite. 'Original entry: Rhyolite' |
| E72684; COLLNOCT1931; | South of Buckborrow, Longsleddale. | E72684; COLLNOCT1931; | *; *; | 1999 | Rhyolite. 'Original entry: Rhyolite' |
| E72686; COLLNOCT1933; | South of Buckbarrow Crag, Longsleddale. | E72686; COLLNOCT1933; | *; *; | 1999 | Rhyolite. 'Original entry: Rhyolite.' |
| MR11243 | Quarry in Wastor Wood, Kingston, Devon, | MR11243 | * | Rhyolite. 'Original entry: Spherulitic Rhyolite' | |
| MR15466 | Just east of centre of southface, Quarry at top of Withuse Down a quarter of a mile south of Withuse Farm, Maker Peuinsula, Cornwall, | MR15466 | 1936 | Rhyolite. 'Original entry: Purple Rhyolite' | |
| MR15467 | Centre of South face, Quarry at top of Withuse Down a quarter of a mile south of Withuse Farm, ? Peuinsula, Cornwall, | MR15467 | 1936 | Rhyolite. 'Original entry: Grey Rhyolite' | |
| MR1512 | St Saviour's Common, Jersey, | MR1512 | Rhyodacite, Porphyritic. 'Original entry: Quartz-Porphyry' | ||
| MR15468 | Centre of South face, Quarry at top of Withuse Down a quarter of a mile south of Withuse Farm, ? Peuinsula, Cornwall, | MR15468 | 1936 | Rhyolite. 'Original entry: Grey Rhyolite - Nodular Facies' | |
| MR15469 | Centre of northern face, Quarry at top of Withuse Down a quarter of a mile south of Withuse Farm, ? Peuinsula, Cornwall, | MR15469 | 1936 | Rhyolite. 'Original entry: Elvan - Dyke In Rhyolite' | |
| MR15470 | Watergate Quarry,300 yards north of Kingsand Chapel Maker Peuinsular, | MR15470 | 1936 | Rhyolite. 'Original entry: Purple Rhyolite With Bleached Spots' | |
| MR15471 | Bridgemoor Farm Quarry,Bridgemoor Farm Quarry, 1 mile N.W. of Millbrook, Maker Peuinsular, | MR15471 | 1936 | Rhyolite. 'Original entry: Purple Rhyolite - Intermediate Stage - Withnoe-Cawsand' | |
| MR21266 | Just E of Centre of S face of Quarry at top of Withnoe Down, 1/4 ml S of Withnoe Farm, | MR21266 | 1957 | Rhyolite. 'Original entry: Purple Rhyolite' | |
| MR21267 | Quarry,Centre of S face of Quarry at top of Withnoe Down, 1/4 ml S of Withnoe Farm, | MR21267 | 1957 | Rhyolite. 'Original entry: Grey Rhyolite' | |
| MR21268 | Bridgemoore Farm Quarry,1ml NW of Millbrook, | MR21268 | 1957 | Rhyolite. 'Original entry: Purple Rhyolite' | |
| MR21098 | Quarry south of road, a quarter of a mile east of Treneved, Llanrian, Pembrokeshire, | MR21098 | Rhyolite. 'Original entry: Devitrified Rhyolite' | ||
| MR21060 | East side of Quarry on south side of Glen ESE of Buckatree Hall, Ercall Hill, a quarter of a mile east of north end of large reservoir and about 1 and a half miles SSW of station, Wellington, Shropshire, | MR21060 | Rhyolite. 'Original entry: Purple Rhyolite' | ||
| MR17799 | Quarry,Quarry Town, Nr. Ballymena, | MR17799 | 1946 | Rhyolite. 'Original entry: Rhyolite' | |
| MR7803 | E of Barch, NE of Rock, | MR7803 | 1931 | Rhyolite. 'Original entry: Rhyolite' | |
| MR7853 | S of road, 1/4 mile E of Trenevid, Llanrian, | MR7853 | 1931 | Rhyolite. 'Original entry: Rhyolite, Devitrified' | |
| MR7854 | N of road, 1/4 mile E of Trenevid, Llanrian, | MR7854 | 1931 | Rhyolite. 'Original entry: Rhyolite' | |
| MR7855 | N of road, 1/4 mile E of Trenevid, Llanrian, | MR7855 | 1931 | Rhyolite. 'Original entry: Rhyolite, Brecciated' | |
| MR5415 | Lea Rock,Wellington, | MR5415 | Rhyolite. 'Original entry: Spherulitic Felsite (Altered Rhyolite), "Lea Rock"' | ||
| MR9960 | Ingleton Granite Quarry,on the Ingleton - Hawes road, 1 mile N.E. of Ingleton, Yorkshire,See JFN Green, PGA, 1917, Note on the correlation of the Ingletonian | MR9960 | 1933 | Rock, Siliciclastic, Arenaceous. 'Original entry: Decomposed Arkose' | |
| MR7874 | half way up hill leading to Llangynog, Pentre-newydd, | MR7874 | 1931 | Rhyolite. 'Original entry: Rhyolite' | |
| MR7875 | at Lambstone Farm, NW of Llangynog, | MR7875 | 1931 | Rhyolite. 'Original entry: Rhyolite' | |
| MR7091 | trachyte quarry by school 3 miles NE of Ballymena, | MR7091 | 1888 | Rhyolite. 'Original entry: Rhyolite, With Flow Structure' | |
| E16275; MR8630; | 200 yards SE of British Camp Reservoir, Little Malvern, | E16275; MR8630; | 1932 | Rhyolite. 'Original entry: Epidotised And Brecciated Rhyolite' | |
| MR8631 | Overley Hill,NW end of Overley Hill Quarry, 1 and 3/16 mile SW of church, Wrockwardine, | MR8631 | 1931 | Rhyolite. 'Original entry: Pink Rhyolite' | |
| MR8633 | Overley Hill,S end of Overley Hill Quarry, 1 and 3/16 mile SW of church, Wrockwardine, | MR8633 | 1931 | Rhyolite. 'Original entry: Rholite-Breccia' | |
| MR9228 | disused quarry at N end of Cwm-y-glo, Llyn Padarn, | MR9228 | 1932 | Rhyolite. 'Original entry: Rhyolite, Undeformed' | |
| MR3702 | Point Pleasant, Halifax, Nova Scotia,surface exposure,Canada | MR3702 | 1898 | Rock (Undifferentiated). | |
| MR5389 | Summit County, Colorado,surface exposure,USA | MR5389 | 2071 | Rhyolite. 'Original entry: Rhyolite (Quartz Trachyte, Liparite)' | |
| MR5391 | Apati,surface exposure,Hungary | MR5391 | Rhyolite. 'Original entry: Rhyolite (Quartz Trachyte, Liparite)' | ||
| MR5392 | Eisenbach,surface exposure,Hungary | MR5392 | Rhyolite. 'Original entry: Rhyolite (Quartz Trachyte, Liparite)' | ||
| MR5393 | Glash?tte,surface exposure,Hungary | MR5393 | 2074 | Rhyolite. 'Original entry: Rhyolite (Quartz Trachyte, Liparite)' | |
| MR5394 | Santa Maria, Ponza Island,surface exposure,Italy | MR5394 | Rhyolite. 'Original entry: Rhyolite (Quartz Trachyte, Liparite)' | ||
| MR4871 | W of M Rosa, SW of Forgio Vecchio, Lipari,surface exposure,Italy | MR4871 | 1822 | Rhyolite. 'Original entry: Rhyolite' | |
| MR5039 | Pumiciazzo, Lipari,surface exposure,Italy | MR5039 | 1867 | Rock (Undifferentiated). | |
| MR4979 | T?di group, Alps,surface exposure,Switzerland | MR4979 | 1809 | Rock (Undifferentiated). | |
| MR4980 | T?di group, Alps,surface exposure,Switzerland | MR4980 | 1810 | Rock (Undifferentiated). | |
| MR8260 | Schemnitz,surface exposure,Hungary | MR8260 | 1931 | Rhyolite. 'Original entry: Rhyolite' | |
| MR8261 | Geletnek,surface exposure,Hungary | MR8261 | 1931 | Rhyolite. 'Original entry: Rhyolite' | |
| MR5395 | Hlinik,surface exposure,Hungary | MR5395 | Rhyolite. 'Original entry: Rhyolite (Quartz Trachyte, Liparite)' | ||
| MR5396 | Hlinik,surface exposure,Hungary | MR5396 | Rhyolite. 'Original entry: Rhyolite (Quartz Trachyte, Liparite)' | ||
| MR5397 | Hlinik,surface exposure,Hungary | MR5397 | Rhyolite. 'Original entry: Rhyolite (Quartz Trachyte, Rhyolite)' | ||
| MR5400 | Pusti Hrad,surface exposure,Hungary | MR5400 | Rhyolite. 'Original entry: Rhyolite' | ||
| MR5401 | Kremnitz,surface exposure,Hungary | MR5401 | Rhyolite. 'Original entry: Rhyolite' | ||
| MR5402 | Hlinik,surface exposure,Hungary | MR5402 | Rhyolite. 'Original entry: Rhyolite' | ||
| MR5403 | Kremnitz,surface exposure,Hungary | MR5403 | Rhyolite. 'Original entry: Rhyolite' | ||
| MR5406 | Hlinik,surface exposure,Hungary | MR5406 | Rhyolite. 'Original entry: Rhyolite' | ||
| MR8269 | Eisenbach,surface exposure,Hungary | MR8269 | 1931 | Rhyolite. 'Original entry: Rhyolite' | |
| MR8270 | Apathy,surface exposure,Hungary | MR8270 | 1931 | Rhyolite. 'Original entry: Rhyolite' | |
| MR8271 | Hlinik,surface exposure,Hungary | MR8271 | 1931 | Rhyolitic-Rock. 'Original entry: Rhyolite Porphyry' | |
| MR19844 | Beach, Cherbourg, Cotentin peninsula,surface exposure,France | MR19844 | 1954 | Rock (Undifferentiated). | |
| MR21573 | Hot Springs District, Garland County, Arkansas,surface exposure,Roto-Finish Ltd, European Metal Finishing Division,USA | MR21573 | 1958 | Rock (Undifferentiated). 'Original entry: Novaculite" - Arkansas Stone' | |
| MR8695; F98; | Ascension Island,surface exposure,Charles Darwin Collection,Ascension Island | MR8695; F98; | Darwin ,C. | 1836 | Rock (Undifferentiated). |
| MR11985 | St Vito, Pantelleria,surface exposure,Italy | MR11985 | Rhyolite, Pantelleritic. 'Original entry: Pantellenite' | ||
| MR11990 | Forgio Vecchio, Lipari,surface exposure,Italy | MR11990 | Rhyolite. 'Original entry: Rhyolite' | ||
| MR11992 | Cliff near road W of Monte Rosa and SW of Forgio Vecchio, Lipari,surface exposure,Italy | MR11992 | Rhyolite. 'Original entry: Rhyolite' | ||
| MR35474 | Waiane range, just off end of homestead road, c 4 miles NE of Waianae PO, Oahu, Hawaii,surface exposure,USA - Hawaii | MR35474 | 1981 | Rhyodacite. 'Original entry: Rhyodacite' | |
| MR22686 | Cliffs above Dooey, Rosguill, Co. Donegal,surface exposure,Republic of Ireland | MR22686 | 1960 | Rock (Undifferentiated). | |
| MR34616 | Monte Louzina Quarry, 3.6km ENE of Teolo, Enganei Hills, Veneto, Italy. SW of Padova.,Monte Louzina Quarry,Italy | MR34616 | * | 1979 | Rhyolite. 'Original entry: Alkali Rhyolite' |
| MR32041 | Tongnae,surface exposure,S Korea | MR32041 | 1974 | Rock (Undifferentiated). 'Original entry: Orthoclase' | |
| MR34826 | c. 100yds SW of summit of Mt Lassen (10453ft), Shasta County, California,surface exposure,USA | MR34826 | * | 1979 | Rhyodacite. 'Original entry: Rhyolite-Dacite' |
| MR25199 | Lake Rotoiti, near Rotorua. N77/924140,surface exposure,New Zealand | MR25199 | 1961 | Rhyolite. 'Original entry: Rhyolite' | |
| MR25200 | Ongaroto Gorge, near Atiamuri. N84/330684,surface exposure,New Zealand | MR25200 | 1961 | Rhyolite. 'Original entry: Rhyolite' | |
| MR25201 | Ongaroto Gorge, near Atiamuri. N84/340691,surface exposure,New Zealand | MR25201 | 1961 | Rhyolite. 'Original entry: Rhyolite' | |
| MR25204 | Lake Rotoiti. N76/899140,surface exposure,New Zealand | MR25204 | 1961 | Rhyolite. 'Original entry: Rhyolite' | |
| MR25205 | Lake Rotoiti. N76/899140,surface exposure,New Zealand | MR25205 | 1961 | Rhyolite. 'Original entry: Rhyolite' | |
| MR25207 | Lake Rotoma. N77/024142,surface exposure,New Zealand | MR25207 | 1961 | Rhyolite. 'Original entry: Rhyolite' | |
| MR25210 | Rotorua,surface exposure,New Zealand | MR25210 | 1961 | Rhyolite. 'Original entry: Rhyolite' | |
| MR25211 | Rotorua,surface exposure,New Zealand | MR25211 | 1961 | Rhyolite. 'Original entry: Rhyolite' | |
| MR25212 | Rotorua,surface exposure,New Zealand | MR25212 | 1961 | Rhyolite. 'Original entry: Rhyolite' | |
| MR25213 | Rotorua,surface exposure,New Zealand | MR25213 | 1961 | Rhyolite. 'Original entry: Rhyolite' | |
| MR25214 | Surface exposure, Rotorua, North Island, New Zealand | MR25214 | 1961 | Rhyolite. 'Original entry: Rhyolite' | |
| MR35764 | Smoljanski Ernera, Rhodope Mountains, Bulgaria,surface exposure,Bulgaria | MR35764 | * | 1982 | Rhyolite. 'Original entry: Rhyolite' |
| MR17916 | Island of Ornv, Stockholm archipelago,surface exposure,Sweden | MR17916 | 1946 | Rock (Undifferentiated). |