BGS mineralogy and petrology collection record

Sample number S48666; COLLNOYR485;
Sample Donor Smith,D.I.
Rock name 'Original entry: Dark Porphyrite Cut By Pink Granite'
Stratigraphy Not entered
Comments Dark porphyrite dyke cut by pink granite vein
Locality details Inverawe Tunnel runs SE (HE 26); 6450 ft from access tunnel portal
50k map sheet Oban (45)

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Map reference NN 0342 3137
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


S48666

Cross Polarized, S48666

Plane Polarized, S48666

Plane Polarized, S48666