BGS mineralogy and petrology collection record

Sample number S30640
Sample Donor Allan,J.K.
Rock name 'Original entry: Biotite-Andesine Gneiss'
Stratigraphy Not entered
Comments Biotite-andesine gneiss
Locality details Graveland, N head of Rivirs Geo
50k map sheet Yell (130)

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Map reference HU 463 959
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


S30640

Cross Polarized, S30640

Plane Polarized, S30640

Plane Polarized, S30640