BGS mineralogy and petrology collection record

Sample number S52662; COLLNOYR1345;
Sample Donor Smith,D.I.
Rock name 'Original entry: Dark Microdiorite'
Stratigraphy Not entered
Comments Dark microdiorite dyke
Locality details Ianachain Tunnel, Chainage 925 ft
50k map sheet Oban (45)

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Map reference NN 1190 3213
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


S52662

Cross Polarized, S52662

Plane Polarized, S52662

Plane Polarized, S52662