BGS mineralogy and petrology collection record

Sample number S30717
Sample Donor Robertson,T.
Rock name 'Original entry: Biotite Granite'
Stratigraphy Not entered
Comments Granitic gneiss; 1 ft from granite contact; cf. S. 30713, same type of poikilitic quartz
Locality details C14. 200 yds S of the Head of Northra Voe, Vementry
50k map sheet West Shetland ? (127)

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View the geology near 'West Shetland ?'

Map reference HU 293 605
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


S30717

Cross Polarized, S30717

Plane Polarized, S30717

Plane Polarized, S30717