BGS mineralogy and petrology collection record

Sample number E475
Sample Donor Geikie,A.
Rock name 'Original entry: Chloritised Epidotised Porphyry'
Stratigraphy Not entered
Comments Porphyry above where it cuts out conglomerate.
Locality details S. of Castell, St. Davids.
50k map sheet St. Davids (209)

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Map reference
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


E475

Cross Polarized, E475

Plane Polarized, E475

Plane Polarized, E475