BGS mineralogy and petrology collection record

Sample number S11567
Sample Donor Grabham, G.W.
Rock name 'Original entry: Biotite-Hornblende Porphyrite'
Stratigraphy Not entered
Comments Dyke; Memoir, p. 175
Locality details 100 yds E 30 deg N of cairn, Meall Garbh
50k map sheet Ben Nevis (53)

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Map reference NN 1965 4817
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


S11567

Cross Polarized, S11567

Plane Polarized, S11567

Plane Polarized, S11567