BGS mineralogy and petrology collection record

Sample number S7521
Sample Donor Gunn, W.
Rock name 'Original entry: Granophyre'
Stratigraphy Not entered
Comments Granophyre, typical
Locality details 50 yards SW of triangulation point at 1341 feet on Cnoc Dubh
50k map sheet Arran (Millport) (21)

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Map reference NR 977 349
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


S7521

Cross Polarized, S7521

Plane Polarized, S7521

Plane Polarized, S7521