BGS mineralogy and petrology collection record

Sample number S30040
Sample Donor Macgregor,A.G.
Rock name 'Original entry: ?Epidiorite'
Stratigraphy Not entered
Comments ?Epidiorite, with granite strings; large enclosure in siliceous schist, 100 yds from tonalite margin and 50 yds from biotite granite
Locality details Croit a' Chuil Mhaim, 810 yds N 18 deg E of spot ht 2511 ft Fuar Bheinn
50k map sheet Tobermory (52)

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Map reference NM 8563 5706
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


S30040

Cross Polarized, S30040

Plane Polarized, S30040

Plane Polarized, S30040