BGS mineralogy and petrology collection record

Sample number S51684; COLLNOYR1127;
Sample Donor Smith,D.I.
Rock name 'Original entry: Dark Porphyrite'
Stratigraphy Not entered
Comments Dark porphyrite dyke
Locality details Loch Awe Project (HE26): Brander Tunnel, 6900 ft from outfall
50k map sheet Oban (45)

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Map reference NN 0596 2857
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


S51684

Cross Polarized, S51684

Plane Polarized, S51684

Plane Polarized, S51684