BGS mineralogy and petrology collection record

Sample number S52641; COLLNOYR1291;
Sample Donor Smith,D.I.
Rock name 'Original entry: ?Hornfelsed Porphyrite Veined By Granodiorite'
Stratigraphy Not entered
Comments ?Hornfelsed porphyrite dyke veined by granodiorite
Locality details Noe West Tunnel, Chainage 1135 ft (Zero Chainiage = intersection with Cruachan Main tunnel, NGR NN 08553151
50k map sheet Oban (45)

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Map reference NN 0827 3171
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


S52641

Cross Polarized, S52641

Plane Polarized, S52641

Plane Polarized, S52641