BGS mineralogy and petrology collection record

Sample number S12479
Sample Donor Grabham, G.W.
Rock name 'Original entry: Granophyre Porphyry'
Stratigraphy Not entered
Comments Dyke later than granite; curious rock (discontinuous dyke W of Stob Dearg)
Locality details 650 yds up seventh burn down SE side of Coupall River, Lairig Gartain, Buchaille Etive Mor
50k map sheet Ben Nevis (53)

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Map reference NN 2105 5460
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


S12479

Cross Polarized, S12479

Plane Polarized, S12479

Plane Polarized, S12479