BGS mineralogy and petrology collection record

Sample number S31540
Sample Donor Eyles,V.A.
Rock name 'Original entry: Dark Schist'
Stratigraphy Not entered
Comments Rocks occurring to the east of the outcrop of the Middle Old Red Sandstone
Locality details A few yards SE of S.31539
50k map sheet Glen Roy (63)

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Map reference NN 30747 95286
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


S31540

Cross Polarized, S31540

Plane Polarized, S31540

Plane Polarized, S31540