BGS mineralogy and petrology collection record

Sample number S12464
Sample Donor Grabham, G.W.
Rock name 'Original entry: Hornblende Andesite'
Stratigraphy Not entered
Comments Altered baked lava; Memoir, pp. 100, 205
Locality details 725 yds N 34 deg E of top of third burn down SE side of Coupall River, Royal Forest
50k map sheet Ben Nevis (53)

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Map reference NN 2057 5366
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


S12464

Cross Polarized, S12464

Plane Polarized, S12464

Plane Polarized, S12464