BGS mineralogy and petrology collection record

Sample number S22050; S22050/A;
Sample Donor Phemister,J.
Rock name 'Original entry: Riebeckite Syenite'
Stratigraphy Not entered
Comments Type of coarse hornblende syenite
Locality details In Black Rock Burn 1025 yds from junction of R Oykell with Allt an Sail Ruathair; left bank
50k map sheet Lairg (102)

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Map reference NC 31780 13225
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


S22050

Cross Polarized, S22050

Plane Polarized, S22050

Plane Polarized, S22050


S22050/A

Cross Polarized, S22050/A

Plane Polarized, S22050/A

Plane Polarized, S22050/A