BGS mineralogy and petrology collection record

Sample number S46237; COLLNOYZ20;
Sample Donor Berridge,N.G.
Rock name 'Original entry: Foliated Melanocratic Microdiorite'
Stratigraphy Not entered
Comments S. 46236-46239: three lithologies in one major intrusive set in a major easterly-dipping joint
Locality details Allt Coire nan Gall, 330 yds above bend, last big bend before old loch apex near new Loch Quoich
50k map sheet Loch Eil (62)

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Map reference NM 9321 9870
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


S46237

Cross Polarized, S46237

Plane Polarized, S46237

Plane Polarized, S46237