BGS mineralogy and petrology collection record

Sample number S21908
Sample Donor Macgregor,A.G.
Rock name 'Original entry: Quartz-Feldspar Granulite'
Stratigraphy Not entered
Comments Types of country rock: rather coarse-grained massive siliceous schist, with a good deal of feldspar
Locality details Allt a'Chnocain, 0.375 mile up from main road
50k map sheet Lairg (102)

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Map reference NC 43158 02266
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


S21908

Cross Polarized, S21908

Plane Polarized, S21908

Plane Polarized, S21908