BGS mineralogy and petrology collection record

Sample number E4188
Sample Donor Usher,W.A.E.
Rock name 'Original entry: Porphyritic Elvan (Tourmaline)'
Stratigraphy Not entered
Comments Dyke.
Locality details Quarry North of Chytane Clayworks.
50k map sheet Bodmin (347)

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Map reference
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


E4188

Cross Polarized, E4188

Plane Polarized, E4188

Plane Polarized, E4188