BGS mineralogy and petrology collection record

Sample number E437
Sample Donor Geikie,A.
Rock name 'Original entry: Decomposed Basalt, Much Secondary Chlorite'
Stratigraphy Not entered
Comments Dyke.
Locality details At Castell, Archway, 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


E437

Cross Polarized, E437

Plane Polarized, E437

Plane Polarized, E437