BGS mineralogy and petrology collection record

Sample number	E22112; COLLNO1; ENQ774;
Sample Donor	Dunham,K.C.
Rock name	Chert. 'Original entry: Chert'
Stratigraphy	Not entered
Comments	Submitted by Bakewell Chert Ltd. Barewell
Locality details	Roos Quarry, Pen-ys-Henhlas, Halkyn.
50k map sheet	Flint (108) View images in GeoScenic related to 'Flint' View a geological map near 'Flint'
Map reference	SJ 190 730
Year collected	1947
Bore name	Not applicable
Confidentiality	No restrictions

Petrological thin sections

Field of view: c. 31 mm.