BGS mineralogy and petrology collection record

Sample number	E18463; COLLNOJS 237;
Sample Donor	Stephens,J.V.
Rock name	'Original entry: ?Ash,Hdrolyzed'
Stratigraphy	Not entered
Comments	Vein in Toadstone? Calc. Mudstone
Locality details	Mill Close Mine, Darley Bridge, 18 S.W. district No.5 stope
50k map sheet	Chesterfield (112) View images in GeoScenic related to 'Chesterfield' View the geology near 'Chesterfield'
Map reference	SK 259 624
Year collected	Not entered
Bore name	Not applicable
Confidentiality	No restrictions

Petrological thin sections

Field of view: c. 31 mm.