BGS mineralogy and petrology collection record

Sample number S77494; COLLNOMY635;
Sample Donor Gould,D.
Rock name Porphyry. 'Original entry: Felsite'
Stratigraphy Not entered
Comments Purple felsite
Locality details By roadside 230m NE of Upper Craigton
50k map sheet Alford (76W)

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Map reference NJ 5996 0062
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


S77494

Cross Polarized, S77494

Plane Polarized, S77494

Plane Polarized, S77494