BGS mineralogy and petrology collection record

Sample number E6950
Sample Donor Usher,W.A.E.
Rock name Rhyolite. 'Original entry: Elvan'
Stratigraphy Not entered
Comments Greisened.
Locality details Phoebis Point.
50k map sheet Bodmin (347)

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Map reference SX 033 497
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


Cross Polarized, E6950

Plane Polarized, E6950

Plane Polarized, E6950