BGS mineralogy and petrology collection record

Sample number E57225
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 Outcrop in farm track, 1.8 Km. at 318 deg. from St. Cleer Church.
50k map sheet Tavistock (337)

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Map reference SX 2350 6953
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


E57225

Cross Polarized, E57225

Plane Polarized, E57225

Plane Polarized, E57225