BGS mineralogy and petrology collection record

Sample number	E57717; COLLNOFK53;
Sample Donor	Powell,J.H.
Rock name	Not entered
Stratigraphy	Not entered
Comments	Coral Rag : Silicified hardground at top
Locality details	Wrelton quarry 200m 160d N. Crook Hill Farm
50k map sheet	Thirsk (52) View images in GeoScenic related to 'Thirsk' View a geological map near 'Thirsk'
Map reference	SE 7682 8710
Year collected	Not entered
Bore name	Not applicable
Confidentiality	No restrictions

Petrological thin sections

Field of view: c. 31 mm.