BGS mineralogy and petrology collection record

Sample number S25063
Sample Donor Macgregor,A.G.
Rock name 'Original entry: Biotite-Garnet Rock'
Stratigraphy Not entered
Comments Biotite-garnet rock between garnetiferous hornblende gneiss and pyritous calcsilicate rock
Locality details Coast 742 yds N 35 deg E from E end of lochan at Carrastaoin
50k map sheet Tiree (42)

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Map reference NL 9521 4758
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


S25063

Cross Polarized, S25063

Plane Polarized, S25063

Plane Polarized, S25063