BGS mineralogy and petrology collection record

Sample number	MR16278; COLLNOTN77;
Sample Donor	George,T.N.
Rock name	'Original entry: Slate'
Stratigraphy	Not entered
Comments	Ordovician-Caradoc Black Slate group
Locality details	Chwarel-Dou, Dolwyddelan
50k map sheet	Snowdon (119) View images in GeoScenic related to 'Snowdon' View the geology near 'Snowdon'
Map reference	SH 721 522
Year collected	Not entered
Bore name	Not applicable
Confidentiality	No restrictions