BGS mineralogy and petrology collection record

Sample number	E38725; COLLNOCE5;
Sample Donor	Evans,C.D.R.
Rock name	'Original entry: Basic Igneous Rock'
Stratigraphy	Not entered
Comments	Cleaved basic rock containing feldspar phenocrysts; ?tuff
Locality details	830 yds 315 deg from Dolwyddelan Castle
50k map sheet	Snowdon (119) View images in GeoScenic related to 'Snowdon' View the geology near 'Snowdon'
Map reference	SH 7164 5283
Year collected	Not entered
Bore name	Not applicable
Confidentiality	No restrictions

Petrological thin sections

Field of view: c. 31 mm.