BGS mineralogy and petrology collection record

Sample number S30621
Sample Donor Allan,J.K.
Rock name 'Original entry: Diaphthoretic Garnetiferous Chlorite-Muscovite Schist'
Stratigraphy Not entered
Comments Diaphthoretic garnetiferous chlorite-muscovite schist. Shimmer aggregate porphyroblasts, relics of ?sillimanite
Locality details Bow of Hascosay, 1470 yds NE from Bakka Skeo
50k map sheet Yell (130)

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Map reference HU 549 929
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


S30621

Cross Polarized, S30621

Plane Polarized, S30621

Plane Polarized, S30621