BGS mineralogy and petrology collection record

Sample number S39496
Sample Donor Macgregor,A.G.
Rock name 'Original entry: Pelite Becoming Tonalised By The Development Of White Feldspars'
Stratigraphy Not entered
Comments Pelite becoming tonalised by the development of white feldspars; about 9 in from S.39495
Locality details Rudha an t-Sabhail, 465 ft W from granite (tronalite) contact
50k map sheet Tobermory (52)

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Map reference NM 7721 5994
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


S39496

Cross Polarized, S39496

Plane Polarized, S39496

Plane Polarized, S39496