BGS mineralogy and petrology collection record

Sample number S106
Sample Donor Geikie,A.
Rock name 'Original entry: Andesite'
Stratigraphy Not entered
Comments "Porphyrite"
Locality details Blackford Hill
50k map sheet Edinburgh (32)

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Map reference NT 25 70
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


S106

Cross Polarized, S106

Plane Polarized, S106

Plane Polarized, S106