BGS mineralogy and petrology collection record

Sample number	E4109; COLLNO76;
Sample Donor	Pocock,R.W.
Rock name	'Original entry: Chertified Organic Limestone'
Stratigraphy	Not entered
Comments	Chert
Locality details	Nr. Middleton Cross, Wirksworth
50k map sheet	Derby (125) View images in GeoScenic related to 'Derby' View the geology near 'Derby'
Map reference	SK 280 553
Year collected	Not entered
Bore name	Not applicable
Confidentiality	No restrictions

Petrological thin sections

Field of view: c. 31 mm.