BGS mineralogy and petrology collection record

Sample number E22720
Sample Donor Rapson, J.S.
Rock name Felsite. 'Original entry: Quartz Porphyry'
Stratigraphy Not entered
Comments Pale coloured elvan, porphyritic. With ? fluorite.
Locality details Quarry, W. of Rd, Tremore Bridge.
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


E22720

Cross Polarized, E22720

Plane Polarized, E22720

Plane Polarized, E22720