BGS mineralogy and petrology collection record

Sample number	E38742; COLLNOCE35;
Sample Donor	Evans,C.D.R.
Rock name	'Original entry: Tuff'
Stratigraphy	Not entered
Comments	Coarse lithic tuff in Lower Rhyolitic Tuffs. 10-15 ft from base.
Locality details	560 yds 2 deg from Tyn y Ddol Qry.
50k map sheet	Snowdon (119) View images in GeoScenic related to 'Snowdon' View the geology near 'Snowdon'
Map reference	SH 7003 5192
Year collected	Not entered
Bore name	Not applicable
Confidentiality	No restrictions

Petrological thin sections

Field of view: c. 31 mm.