BGS mineralogy and petrology collection record

Sample number S15572
Sample Donor Wright, William Bourke (only Wright in Survey before 1935, prob. same as H B Wright above)
Rock name Not entered
Stratigraphy Not entered
Comments Loch Ba Ring-dyke; crushed granite outside
Locality details Allt a' Choire Bhain, 1.14 mile N 14 deg E from trig pt 1652 ft Beinn Chaisgidle
50k map sheet Mull (44)

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Map reference NM 6104 3449
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


S15572

Cross Polarized, S15572

Plane Polarized, S15572

Plane Polarized, S15572