BGS mineralogy and petrology collection record

Sample number S7511
Sample Donor Gunn, W.
Rock name 'Original entry: Biotite-Hornblende Gneiss: Igneous?'
Stratigraphy Not entered
Comments Not entered
Locality details Allt Ghiubhais Mor, 0.67 mile S of road
50k map sheet Alness (93)

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Map reference NH 348 693
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


S7511

Cross Polarized, S7511

Plane Polarized, S7511

Plane Polarized, S7511