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 the geology 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.