BGS mineralogy and petrology collection record

Sample number S21704
Sample Donor Macgregor,A.G.
Rock name 'Original entry: Basalt'
Stratigraphy Not entered
Comments NW basalt vein in gneiss
Locality details 633 yds W 40 deg S from spot ht 388 ft Beinn Hough
50k map sheet Tiree (42)

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Map reference NL 9453 4597
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


S21704

Cross Polarized, S21704

Plane Polarized, S21704

Plane Polarized, S21704