BGS mineralogy and petrology collection record

Sample number S30625
Sample Donor Allan,J.K.
Rock name 'Original entry: Biotite-Oligoclase Gneiss'
Stratigraphy Not entered
Comments Biotite-oligoclase gneiss. Porphyroblastic
Locality details Sand of Whinnifirth, Hascosay
50k map sheet Yell (130)

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Map reference HU 550 920
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


S30625

Cross Polarized, S30625

Plane Polarized, S30625

Plane Polarized, S30625