BGS mineralogy and petrology collection record

Sample number E36331; COLLNOJW364;
Sample Donor Wright,J.
Rock name Wacke. 'Original entry: Greywacke'
Stratigraphy Not entered
Comments Fine grained purplish grey micaceous sandstone from near base of quarry section. (Upper Carboniferous Welcombe Formation).
Locality details Old quarry, 620 Yds. at 208 deg. from Cheldon House.
50k map sheet Cholmleigh (309)

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Map reference SS 7241 1316
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


E36331

Cross Polarized, E36331

Plane Polarized, E36331

Plane Polarized, E36331