BGS mineralogy and petrology collection record

Sample number S34664; COLLNOMR73;
Sample Donor Macgregor,A.G.
Rock name Not entered
Stratigraphy Not entered
Comments Acid porphyrite (unusual type)
Locality details Top of Knockencorsan near SW end and near wall on ridge top
50k map sheet Glasgow (30)

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Map reference NS 2421 6704
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


S34664

Cross Polarized, S34664

Plane Polarized, S34664

Plane Polarized, S34664