BGS mineralogy and petrology collection record

Sample number S7473
Sample Donor Harker, Alfred
Rock name 'Original entry: Porphyritic Dolerite'
Stratigraphy Not entered
Comments Dyke
Locality details Geal Ghillean
50k map sheet Glenelg (71)

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Map reference NG 525 181
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


S7473

Cross Polarized, S7473

Plane Polarized, S7473

Plane Polarized, S7473