BGS mineralogy and petrology collection record

Sample number E51935; COLLNOLA621;
Sample Donor Allen,P.M.
Rock name Porphyry. 'Original entry: Porphyry'
Stratigraphy Not entered
Comments Porphyry.
Locality details 310 Yds. at 002 deg. from Treiva.
50k map sheet St. Davids (209)

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Map reference SM 8489 2737
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


E51935

Cross Polarized, E51935

Plane Polarized, E51935

Plane Polarized, E51935