BGS mineralogy and petrology collection record

Sample number E18683
Sample Donor Not entered
Rock name 'Original entry: Greywacke'
Stratigraphy Not entered
Comments Pennant Fragments of shells Presented by Keverne & Assoc
Locality details Conygar Pennant quarry Clevedon
50k map sheet Bristol (264)

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Map reference ST 421 722
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


E18683

Cross Polarized, E18683

Plane Polarized, E18683

Plane Polarized, E18683