BGS mineralogy and petrology collection record

Sample number S39532
Sample Donor Macgregor,A.G.
Rock name 'Original entry: Tonalite'
Stratigraphy Not entered
Comments Biotite-hornblende tonalite c. 10 ft from schist junction
Locality details Amhainn a'Ghlinne Ghil, right bank, 870 yds W 20 deg S of Uileann
50k map sheet Tobermory (52)

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Map reference NM 7408 5032
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


S39532

Cross Polarized, S39532

Plane Polarized, S39532

Plane Polarized, S39532