BGS mineralogy and petrology collection record

Sample number S95779; COLLNOLY848;
Sample Donor Robertson,S.
Rock name Porphyry. 'Original entry: Porphyry'
Stratigraphy Not entered
Comments Purple feldspar biotite quartz porphyry
Locality details Alyth Burn, 150m SW of Craighead
50k map sheet Glen Shee (56W)

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Map reference NO 1949 5400
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


S95779

Cross Polarized, S95779

Plane Polarized, S95779

Plane Polarized, S95779