BGS mineralogy and petrology collection record

Sample number	E27185; COLLNO32;
Sample Donor	Thomas,H.H.
Rock name	'Original entry: Veinstone Mineral Sample'
Stratigraphy	Not entered
Comments	Spherulitic mica. Vein with much greisenised rock
Locality details	Tan-y-Grisiau (Qry), Ffestiniog
50k map sheet	Snowdon (119) View images in GeoScenic related to 'Snowdon' View the geology near 'Snowdon'
Map reference	SH 680 450
Year collected	Not entered
Bore name	Not applicable
Confidentiality	No restrictions

Petrological thin sections

Field of view: c. 31 mm.