BGS mineralogy and petrology collection record

Sample number E57230
Sample Donor Dangerfield,J.; Hawkes,J.R.; Wheatley, C.W.;
Rock name 'Original entry: Porphyritic Volcanic Rock'
Stratigraphy Not entered
Comments Quartz porphyry dyke.
Locality details Old Quarry, 2 Km. at 164 deg. from St. Breward Church.
50k map sheet Camelford (336)

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Map reference SX 1030 7540
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


E57230

Cross Polarized, E57230

Plane Polarized, E57230

Plane Polarized, E57230