BGS mineralogy and petrology collection record

Sample number S11568
Sample Donor Grabham, G.W.
Rock name 'Original entry: Granite Porphyry / Biotite-Hornblende Granite'
Stratigraphy Not entered
Comments NNE Dyke, passing 1.5 mile E of Alltchaoruinn; Memoir, p. 174
Locality details 550 yds S 7 deg W of cairn, Meall Garbh
50k map sheet Ben Nevis (53)

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Map reference NN 1948 4762
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


S11568

Cross Polarized, S11568

Plane Polarized, S11568

Plane Polarized, S11568