BGS mineralogy and petrology collection record

Sample number S30713
Sample Donor Robertson,T.
Rock name 'Original entry: Biotite Granite'
Stratigraphy Not entered
Comments Granite; poikilitic quartz enclosing small orthoclase and plagioclase - forms a mesostasis
Locality details C9. 300 yds SSE from trig pt on Muckle Ward
50k map sheet West Shetland ? (127)

View images in GeoScenic related to 'West Shetland ?'

View the geology near 'West Shetland ?'

Map reference HU 296 607
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


S30713

Cross Polarized, S30713

Plane Polarized, S30713

Plane Polarized, S30713