BGS mineralogy and petrology collection record

Sample number E42692
Sample Donor Hawkes,J.R.
Rock name 'Original entry: Lithic Greywacke'
Stratigraphy Not entered
Comments Weathered fine sandstone. Bude Formation.
Locality details Grilstone Quarry, Blastride Hill, 2.6 Km. WNW. of Bishop's Nympton Church.
50k map sheet Cholmleigh (309)

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Map reference SS 7328 2433
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


E42692

Cross Polarized, E42692

Plane Polarized, E42692

Plane Polarized, E42692