BGS mineralogy and petrology collection record

Sample number	E24186; COLLNO9;
Sample Donor	Eyles,V.A.
Rock name	'Original entry: Albite Bearing Tuffaceous Carbonaceous Mudstone'
Stratigraphy	Not entered
Comments	Black Slate w. Pyrite vein
Locality details	Borehole 11, Llanwyrst. 130 yds. NWof Old Shaft, Cyffty Lead and Zinc Mine
50k map sheet	Bangor (106) View images in GeoScenic related to 'Bangor' View the geology near 'Bangor'
Map reference	SH 773 589
Year collected	Not entered
Bore name	Not applicable
Confidentiality	No restrictions

Petrological thin sections

Field of view: c. 31 mm.