BGS mineralogy and petrology collection record

Sample number S7091
Sample Donor Barrow, G.
Rock name 'Original entry: Oligoclase-Biotite Gneiss'
Stratigraphy Not entered
Comments Sillimanite and garnet. See Memoir, p. 15
Locality details Upper Darrarie
50k map sheet Balmoral (65)

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Map reference NO 316 802
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


S7091

Cross Polarized, S7091

Plane Polarized, S7091

Plane Polarized, S7091