BGS mineralogy and petrology collection record

Sample number E420
Sample Donor Geikie,A.
Rock name 'Original entry: Spherulitic Rhyolite With Phenocrysts'
Stratigraphy Not entered
Comments Not entered
Locality details Boarding shool, 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


E420

Cross Polarized, E420

Plane Polarized, E420

Plane Polarized, E420