BGS mineralogy and petrology collection record

Sample number S31130
Sample Donor Wilson, George Victor
Rock name 'Original entry: Tonalite'
Stratigraphy Not entered
Comments Fine- to medium-grained (quartz-hornblende diorite) tonalite
Locality details 1200 ft NE of pier, head of Skelda Voe
50k map sheet West Shetland and South Shetland ? (126)

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Map reference HU 315 451
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


S31130

Cross Polarized, S31130

Plane Polarized, S31130

Plane Polarized, S31130