BGS mineralogy and petrology collection record

Sample number S10465
Sample Donor Harker, Alfred
Rock name 'Original entry: Allivalite'
Stratigraphy Not entered
Comments Banded anorthite-olivine rock; Mem Small Isles, p. 86
Locality details S face of Askival, Rum
50k map sheet Rum (60)

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Map reference NM 393 948
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


S10465

Cross Polarized, S10465

Plane Polarized, S10465

Plane Polarized, S10465