BGS mineralogy and petrology collection record

Sample number S15074
Sample Donor Horne, J.; Peach, B.N.;
Rock name 'Original entry: Porphyrite'
Stratigraphy Not entered
Comments Porphyrite, Trans Roy Soc Edin Vol 32, pp 359-388
Locality details From edge of neck, Bressay
50k map sheet West Shetland and South Shetland ? (126)

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Map reference HU 527 401
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


S15074

Cross Polarized, S15074

Plane Polarized, S15074

Plane Polarized, S15074