BGS mineralogy and petrology collection record

Sample number S21746
Sample Donor Macgregor,A.G.
Rock name 'Original entry: Flinty-Crush Garnet Rock'
Stratigraphy Not entered
Comments Flinty-crush garnet rock in S. 21719
Locality details E of northern tidal islet, Eilean Ghreasamuill
50k map sheet Tiree (42)

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Map reference NL 9339 4433
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


S21746

Cross Polarized, S21746

Plane Polarized, S21746

Plane Polarized, S21746