BGS mineralogy and petrology collection record

Sample number S51520; COLLNOYC1563;
Sample Donor Mykura,W.
Rock name 'Original entry: Shearted Patchily Kaolinised Granite'
Stratigraphy Not entered
Comments Kaolinised and crushed granite
Locality details 310 yd S 23 deg E of Culswick Broch
50k map sheet Foula (125)

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Map reference HU 254 445
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


S51520

Cross Polarized, S51520

Plane Polarized, S51520

Plane Polarized, S51520