BGS mineralogy and petrology collection record

Sample number S21909
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 Stream crossing road, 0.75 mile E of Oykell Bridge
50k map sheet Lairg (102)

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Map reference NC 39733 00916
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


S21909

Cross Polarized, S21909

Plane Polarized, S21909

Plane Polarized, S21909