BGS mineralogy and petrology collection record

Sample number S21980
Sample Donor Phemister,J.
Rock name 'Original entry: Altered Dolomite'
Stratigraphy Not entered
Comments Ophicalcite lens in syenite. Develpoment of biotite
Locality details In burn 900 yds E 15 deg S of NE corner of Loch Sail an Ruathair
50k map sheet Lairg (102)

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Map reference NC 34188 14703
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


S21980

Cross Polarized, S21980

Plane Polarized, S21980

Plane Polarized, S21980