BGS mineralogy and petrology collection record

Sample number S40438; S40438/A; COLLNOXN658;
Sample Donor Wright,J.E.
Rock name 'Original entry: Quartz-Microdiorite'
Stratigraphy Not entered
Comments ?Biotite microdiorite from 2 ft cross-cutting sheet dipping WSW at c. 50 deg and cut by thin pegmatite veins (same sheet as S. 40265)
Locality details Eas Chia-aig waterfall, 1240 yds due N of Achnacarry Post Office
50k map sheet Loch Eil (62)

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Map reference NN 1760 8887
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


S40438

Cross Polarized, S40438

Plane Polarized, S40438

Plane Polarized, S40438


S40438/A

Cross Polarized, S40438/A

Plane Polarized, S40438/A

Plane Polarized, S40438/A