BGS mineralogy and petrology collection record

Sample number S31158
Sample Donor Wilson, George Victor
Rock name 'Original entry: Hornblende-Biotite Diorite'
Stratigraphy Not entered
Comments Fine-grained hornblende-biotite diorite veined by medium-grained porphyritic tonalite
Locality details 200 yds NW of head of Skelda Voe
50k map sheet West Shetland and South Shetland ? (126)

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Map reference HU 310 452
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


S31158

Cross Polarized, S31158

Plane Polarized, S31158

Plane Polarized, S31158