BGS mineralogy and petrology collection record

Sample number N3085
Sample Donor Krabbendam, Dr Maarten
Rock name Not entered
Stratigraphy Not entered
Comments Semipelitic gneiss with a coarse, almost granoblastic texture, only very weak mica fabric. Recrystallized quartz and plagioclase (oligoclase). Biotite slightly more abundant than muscovite, both in clusters together with garnets, often as atolls, and
Locality details Glen Isla
50k map sheet Glen Shee (56W)

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Map reference NO 1875 7091
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


N3085

Cross Polarized, N3085

Plane Polarized, N3085

Plane Polarized, N3085