BGS mineralogy and petrology collection record

Sample number E51931; COLLNOLA617;
Sample Donor Allen,P.M.
Rock name Diorite. 'Original entry: Diorite'
Stratigraphy Not entered
Comments Porphyritic diorite.
Locality details 150 Yds. at 130 deg. from Pont y Cerbyd.
50k map sheet St. Davids (209)

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Map reference SM 8218 2714
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


E51931

Cross Polarized, E51931

Plane Polarized, E51931

Plane Polarized, E51931