BGS mineralogy and petrology collection record

Sample number S28804; S28804/A;
Sample Donor Macgregor,A.G.
Rock name 'Original entry: Biotite Granodiorite'
Stratigraphy Not entered
Comments Junction of pink-feldspar granodiorite and a fine-grained rock of inclusion zone
Locality details Hillside 500 yds S 25 deg E of Achleek
50k map sheet Tobermory (52)

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Map reference NM 7928 5970
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


S28804

Cross Polarized, S28804

Plane Polarized, S28804

Plane Polarized, S28804


S28804/A

Cross Polarized, S28804/A

Plane Polarized, S28804/A

Plane Polarized, S28804/A