BGS mineralogy and petrology collection record

Sample number E57238
Sample Donor Dangerfield,J.; Hawkes,J.R.; Wheatley, C.W.;
Rock name 'Original entry: Porphyritic Volcanic Rock'
Stratigraphy Not entered
Comments Quartz porphyry.
Locality details Old quarry, N. of St. Bellamins Tor, 3.5 Km. at 126 deg. from Blisland Church.
50k map sheet Camelford (336)

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Map reference SX 1290 7110
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


E57238

Cross Polarized, E57238

Plane Polarized, E57238

Plane Polarized, E57238