BGS mineralogy and petrology collection record

Sample number	E38739; COLLNOCE32;
Sample Donor	Evans,C.D.R.
Rock name	'Original entry: Tuff'
Stratigraphy	Not entered
Comments	Fine vitric tuffs in Upper Part of Lower Rhyolitic Tuffs
Locality details	510 yds 186 deg from Dolwyddelan Castle
50k map sheet	Snowdon (119) View images in GeoScenic related to 'Snowdon' View the geology near 'Snowdon'
Map reference	SH 7210 5184
Year collected	Not entered
Bore name	Not applicable
Confidentiality	No restrictions

Petrological thin sections

Field of view: c. 31 mm.