BGS mineralogy and petrology collection record

Sample number S11081
Sample Donor Barrow, G.
Rock name 'Original entry: Coarse Feldspathic Biotite Gneiss'
Stratigraphy Not entered
Comments Lenticular structure. Undulating films of red spotted biotite with garnets and a little white mica, and oligoclase. Enclose lenticular patches of quartz and oligoclase. Sediment.
Locality details H. NE corner Perth 6SW(E)
50k map sheet Kingussie (64)

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Map reference NN 950 810
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


S11081

Cross Polarized, S11081

Plane Polarized, S11081

Plane Polarized, S11081