BGS mineralogy and petrology collection record

Sample number S52668; COLLNOYR1357;
Sample Donor Smith,D.I.
Rock name 'Original entry: Coarse Grey Granodiorite'
Stratigraphy Not entered
Comments Coarse grey granodiorite
Locality details Cruachan Main Tunnel, Chainage 22500 ft
50k map sheet Oban (45)

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Map reference NN 1158 3381
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


S52668

Cross Polarized, S52668

Plane Polarized, S52668

Plane Polarized, S52668