BGS mineralogy and petrology collection record

Sample number E21259
Sample Donor Stephens,J.V.
Rock name 'Original entry: Sandy Mudstone With Hyalostcilia Sp.'
Stratigraphy Not entered
Comments Spec. of the 'Keighley Blues', a thin band occuring over a restricted area in the middle Gril-Group of the Millstone Grits
Locality details Lad or Scarr on Crow Hill
50k map sheet Clitheroe (68)

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Map reference SD 969 370
Year collected Not entered 
Bore name Not applicable
Confidentiality No restrictions

Petrological thin sections

Links to high resolution images

Transition from XPL to PPL light


E21259

Cross Polarized, E21259

Plane Polarized, E21259

Plane Polarized, E21259