BGS mineralogy and petrology collection record

Sample number S42108
Sample Donor Phemister,J.
Rock name 'Original entry: Muscovite-Biotite-Oligoclase Gneiss'
Stratigraphy Not entered
Comments Mica schist, coarse, lenticular, soft, purple and green; sheared, contorted; garnet chloritised
Locality details Basta Voe, E shore, 1000 yds E by S of Kirkabister
50k map sheet Yell (130)

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Map reference HU 548 951
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


S42108

Cross Polarized, S42108

Plane Polarized, S42108

Plane Polarized, S42108