BGS mineralogy and petrology collection record

Sample number S45041
Sample Donor Haldane,D.; Phemister,J.;
Rock name 'Original entry: Acid Porphyrite'
Stratigraphy Not entered
Comments ? Recrystallised dyke, 40 ft width seen
Locality details N coast of Olna Firth, 1150 ft W of mouth of Mangaster Burn
50k map sheet Central Shetland (128)

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Map reference HU 382 653
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


S45041

Cross Polarized, S45041

Plane Polarized, S45041

Plane Polarized, S45041