BGS mineralogy and petrology collection record

Sample number S22068
Sample Donor Phemister,J.
Rock name 'Original entry: Deformed Lamprophyre / Porphyrite From Shonkinite Zone Of Laccolith'
Stratigraphy Not entered
Comments 1.16 ft lower in sill than S.22067
Locality details Left bank of R Oykell, 240 yds from junction with Allt Cathair Bana
50k map sheet Lairg (102)

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Map reference NC 32134 11895
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


S22068

Cross Polarized, S22068

Plane Polarized, S22068

Plane Polarized, S22068