BGS mineralogy and petrology collection record

Sample number	E38723; COLLNOCE3;
Sample Donor	Evans,C.D.R.
Rock name	'Original entry: Tuff'
Stratigraphy	Not entered
Comments	Muddy tuffaceous rock; part of Rhyolite tuff of Snowdon V.S.
Locality details	360 yds N of Roman Bridge Halt
50k map sheet	Snowdon (119) View images in GeoScenic related to 'Snowdon' View the geology near 'Snowdon'
Map reference	SH 7127 5176
Year collected	Not entered
Bore name	Not applicable
Confidentiality	No restrictions

Petrological thin sections

Field of view: c. 31 mm.