BGS mineralogy and petrology collection record

Sample number S15400
Sample Donor Macgregor,A.G.
Rock name 'Original entry: Biotite Granite'
Stratigraphy Not entered
Comments Granite of the granite-granulite complexes, with relic biotite streaks
Locality details 1266 yds 35 deg E of S from outlet of Loch Mheallain Liath
50k map sheet Lairg (102)

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Map reference NC 66771 16201
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


S15400

Cross Polarized, S15400

Plane Polarized, S15400

Plane Polarized, S15400