BGS mineralogy and petrology collection record

Sample number S33937
Sample Donor Macgregor,A.G.
Rock name Not entered
Stratigraphy Not entered
Comments Fine-grained, purplish blue fels. phyric, cf. ZB flow no. 5
Locality details River Tweed, left bank, 930 yards S 23 deg E of Sucklawridge
50k map sheet Kelso (25)

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Map reference NT 684 323
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


S33937

Cross Polarized, S33937

Plane Polarized, S33937

Plane Polarized, S33937