BGS mineralogy and petrology collection record

Sample number S28824
Sample Donor Macgregor,A.G.
Rock name 'Original entry: Biotite Granodiorite'
Stratigraphy Not entered
Comments Fine-grained leucocratic biotite granite - local non-porphyritic variety
Locality details 680 yds N 15 deg E of spot ht 2511 ft Fuar Bheinn
50k map sheet Tobermory (52)

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Map reference NM 8554 5695
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


S28824

Cross Polarized, S28824

Plane Polarized, S28824

Plane Polarized, S28824