BGS mineralogy and petrology collection record

Sample number S38665
Sample Donor Phemister,J.
Rock name 'Original entry: Nordmarkite Porphyry (Sheared)'
Stratigraphy Not entered
Comments More foliated than S.38664; 15ft thick
Locality details Allt nan Sleagh
50k map sheet Lairg (102)

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Map reference NC 324 097
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


S38665

Cross Polarized, S38665

Plane Polarized, S38665

Plane Polarized, S38665