BGS mineralogy and petrology collection record

Sample number S74564; COLLNOGX976B;
Sample Donor Mendum,J.R.
Rock name Gneiss.
Stratigraphy Not entered
Comments Graphitic schist with garnet and ?plagioclase porphyroblasts
Locality details W flank of Tom Dubh Hill
50k map sheet Tomintoul (75)

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Map reference NJ 2062 2921
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


S74564

Cross Polarized, S74564

Plane Polarized, S74564

Plane Polarized, S74564