BGS mineralogy and petrology collection record

Sample number S48719; COLLNOYR624;
Sample Donor Smith,D.I.
Rock name 'Original entry: Coarse Porphyrite'
Stratigraphy Not entered
Comments Coarse porphyrite dyke
Locality details Crunachy Adit runs approx. NE (HE 26): 2350 from tunnel portal
50k map sheet Oban (45)

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Map reference NN 0401 3044
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


S48719

Cross Polarized, S48719

Plane Polarized, S48719

Plane Polarized, S48719