BGS mineralogy and petrology collection record

Sample number S48670; COLLNOYR490;
Sample Donor Smith,D.I.
Rock name 'Original entry: Highly Porphyritic Porphyrite'
Stratigraphy Not entered
Comments Highly porphyritic porphyrite dyke
Locality details Inverawe Tunnel runs SE (HE 26); 5930 ft from access tunnel portal
50k map sheet Oban (45)

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Map reference NN 0332 3149
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


S48670

Cross Polarized, S48670

Plane Polarized, S48670

Plane Polarized, S48670