BGS mineralogy and petrology collection record

Sample number S41413
Sample Donor Johnstone,G.S.
Rock name 'Original entry: Dark Fine-Grained Basic, Irreg. Intrusive Sheet'
Stratigraphy Not entered
Comments Not entered
Locality details Loch Sloy HE scheme. Dubh Eas - Dubh Uisge tunnel, Allt Arnan north drive 4352 ft from adit
50k map sheet Balquhidder (46)

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Map reference NN 2946 1947
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


S41413

Cross Polarized, S41413

Plane Polarized, S41413

Plane Polarized, S41413