BGS mineralogy and petrology collection record

Sample number S27826
Sample Donor Macgregor,A.G.
Rock name 'Original entry: Appinite, Fine-Grained'
Stratigraphy Not entered
Comments Fine-grained grey biotitic variety of appinite sill
Locality details 470 yds W from 2179 ft summmit Beinn Gaire
50k map sheet Tobermory (52)

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Map reference NM 7768 7490
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


S27826

Cross Polarized, S27826

Plane Polarized, S27826

Plane Polarized, S27826