BGS mineralogy and petrology collection record

Sample number E34985; COLLNOIH1;
Sample Donor Hall,I.H.S.
Rock name Siderite-Mudstone. 'Original entry: Siderite Mudstone'
Stratigraphy Not entered
Comments Bed of apparently sedimentary rock, varying from 1'-2' thick and lying above 1'4" coal seam. (? Gorllwyn coal).
Locality details Dorlais top open cast site. 1800 Yds. N. at 35 deg. N. of Cwm Bargoed Station.
50k map sheet Abergavenny (232)

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Map reference SO 097 074
Year collected Not entered 
Bore name Not applicable
Confidentiality No restrictions

Petrological thin sections

Links to high resolution images

Transition from XPL to PPL light


E34985

Cross Polarized, E34985

Plane Polarized, E34985

Plane Polarized, E34985