BGS mineralogy and petrology collection record

Sample number S32104
Sample Donor Allan,J.K.
Rock name 'Original entry: Muscovite-Biotite-Oligoclase-Porphyroblastic Gneiss'
Stratigraphy Not entered
Comments Muscovite-biotite-oligoclase-porphyroblastic gneiss. Kyanite and garnet; porphyroblasts of oligoclase or andesine, red biotite
Locality details Gruna Taing, N shore, Hascosay
50k map sheet Yell (130)

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Map reference HU 555 932
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


S32104

Cross Polarized, S32104

Plane Polarized, S32104

Plane Polarized, S32104