BGS mineralogy and petrology collection record

Sample number S73514; COLLNONX1351b;
Sample Donor Rock,N.M.S.
Rock name Not entered
Stratigraphy Not entered
Comments Contact between 'porphyrite' and grey ?altered variety
Locality details Large disused quarry, S side of A 75, SW of Bettyknowes Farm
50k map sheet Maxwelltown (9)

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Map reference NX 8529 7357
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


S73514

Cross Polarized, S73514

Plane Polarized, S73514

Plane Polarized, S73514