BGS mineralogy and petrology collection record

Sample number S22025
Sample Donor Phemister,J.
Rock name 'Original entry: Calcite-Biotite Rock; Altered Dolomite'
Stratigraphy Not entered
Comments Part of the limestone attached to the syenite in S.22024; shows permeation of dolomite by syenite
Locality details 480 yds 29 deg W of N of NE corner of Loch Sail an Ruathair
50k map sheet Lairg (102)

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Map reference NC 33231 15363
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


S22025

Cross Polarized, S22025

Plane Polarized, S22025

Plane Polarized, S22025