BGS mineralogy and petrology collection record

Sample number	E18632; COLLNOWW18;
Sample Donor	Woodland,A.W.
Rock name	Siltstone, Micaceous. 'Original entry: Sericitic Siltstone'
Stratigraphy	Not entered
Comments	Country rock containing Limonite-wad ore
Locality details	Old Trial Level, NW spur of Mynydd Mawr, Bettws, Garmon
50k map sheet	Snowdon (119) View images in GeoScenic related to 'Snowdon' View a geological map near 'Snowdon'
Map reference	SH 534 554
Year collected	Not entered
Bore name	Not applicable
Confidentiality	No restrictions

Petrological thin sections

Field of view: c. 31 mm.