BGS mineralogy and petrology collection record

Sample number S22049
Sample Donor Phemister,J.
Rock name 'Original entry: Shonkinite'
Stratigraphy Not entered
Comments Ultrabasic knob in mass of basic spotted rock like S. 22048
Locality details In Black Rock Burn 952 yds 10 deg N of W of junction of R Oykell with Allt an Sail Ruathair; 30 yds upstream from S.22047-22048
50k map sheet Lairg (102)

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Map reference NC 31811 13178
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


S22049

Cross Polarized, S22049

Plane Polarized, S22049

Plane Polarized, S22049