BGS mineralogy and petrology collection record

Sample number S6991
Sample Donor Barrow, G.
Rock name 'Original entry: Sillimanite-Garnet-Biotite Gneiss, Altered'
Stratigraphy Not entered
Comments Similar to S. 6988-6989, somewhat altered
Locality details Old Kinord
50k map sheet Banchory (66)

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Map reference NJ 444 001
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


S6991

Cross Polarized, S6991

Plane Polarized, S6991

Plane Polarized, S6991