BGS mineralogy and petrology collection record

Sample number S4903
Sample Donor Geikie,A.; Peach, B.N.;
Rock name 'Original entry: Andesite Or Dacite F'
Stratigraphy Not entered
Comments Silicified porphyrite H
Locality details Catlelaw, S face. Pentlands
50k map sheet Edinburgh (32)

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Map reference NT 226 643
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


S4903

Cross Polarized, S4903

Plane Polarized, S4903

Plane Polarized, S4903