BGS mineralogy and petrology collection record

Sample number S28881
Sample Donor Wilson, George Victor
Rock name 'Original entry: Coarse-Grained Granodiorite'
Stratigraphy Not entered
Comments Diorite or granite
Locality details N end of loch E of Broch of Culswick
50k map sheet Foula (125)

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Map reference HU 254 447
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


S28881

Cross Polarized, S28881

Plane Polarized, S28881

Plane Polarized, S28881