BGS mineralogy and petrology collection record

Sample number S76322; COLLNOLY075;
Sample Donor Robertson,S.
Rock name Porphyry.
Stratigraphy Not entered
Comments Pinkish-brown porphyry (10-15m thick dyke cutting coarse granite)
Locality details Centre of broad spur, SW spur of Culblean Hill
50k map sheet Balmoral (65)

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Map reference NO 3965 9974
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


S76322

Cross Polarized, S76322

Plane Polarized, S76322

Plane Polarized, S76322