BGS mineralogy and petrology collection record

Sample number S12480
Sample Donor Grabham, G.W.
Rock name 'Original entry: Hornblende Porphyry / Vogesite'
Stratigraphy Not entered
Comments Dyke later than granite; curious rock (discontinuous dyke W of Stob Dearg); Strowan Porphyry approaching lamprophyre
Locality details 135 yds NE of top of sixth burn down SE side of Coupall River, Lairig Gartain
50k map sheet Ben Nevis (53)

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Map reference NN 2137 5428
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


S12480

Cross Polarized, S12480

Plane Polarized, S12480

Plane Polarized, S12480