BGS mineralogy and petrology collection record

Sample number S31029
Sample Donor Wilson, George Victor
Rock name 'Original entry: Quartz-Lensed, Garnetiferus Hornblende-Oligoclase Rock'
Stratigraphy Not entered
Comments Garnetiferous hornblende schist; milled on fractures; ?original of S. 31022
Locality details Broch, head of West Burra Firth
50k map sheet West Shetland ? (127)

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Map reference HU 257 572
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


S31029

Cross Polarized, S31029

Plane Polarized, S31029

Plane Polarized, S31029