BGS mineralogy and petrology collection record

Sample number S319; S319/A; S319/B;
Sample Donor Geikie,A.
Rock name 'Original entry: Felsite Or Rhyolite?'
Stratigraphy Not entered
Comments "Brecciated tuff"
Locality details Top of Caerketton Hill, Pentlands
50k map sheet Edinburgh (32)

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Map reference NT 237 662
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


S319/A

Cross Polarized, S319/A

Plane Polarized, S319/A

Plane Polarized, S319/A


S319/B

Cross Polarized, S319/B

Plane Polarized, S319/B

Plane Polarized, S319/B