BGS mineralogy and petrology collection record

Sample number S92484; COLLNOYW1938;
Sample Donor May,F.
Rock name Porphyry. 'Original entry: Quartz Feldspar Porphyry'
Stratigraphy Not entered
Comments Shattered quartz feldspar porphyry concordant dyke
Locality details Allt Goibhre
50k map sheet Glen Roy (63)

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Map reference NN 2834 9332
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


S92484

Cross Polarized, S92484

Plane Polarized, S92484

Plane Polarized, S92484