BGS mineralogy and petrology collection record

Sample number	E11789; COLLNO4138;
Sample Donor	Howe,J.A.
Rock name	'Original entry: Fine Grained Silicious Rk.'
Stratigraphy	Not entered
Comments	See Min.Res.V1(2nd Edn.) 1920.p76 Refactory rock (Ganister)
Locality details	Ridgeway Qy., Ambergate
50k map sheet	Derby (125) View images in GeoScenic related to 'Derby' View the geology near 'Derby'
Map reference	SK 358 515
Year collected	Not entered
Bore name	Not applicable
Confidentiality	No restrictions

Petrological thin sections

Field of view: c. 31 mm.