BGS mineralogy and petrology collection record

Sample number S51682; COLLNOYR1118;
Sample Donor Smith,D.I.
Rock name 'Original entry: Grey Porphyrite'
Stratigraphy Not entered
Comments Grey porphyrite dyke cuts S. 51683
Locality details Loch Awe Project (HE26): Brander Tunnel, 4550 ft from outfall
50k map sheet Oban (45)

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Map reference NN 0651 2830
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


S51682

Cross Polarized, S51682

Plane Polarized, S51682

Plane Polarized, S51682