BGS mineralogy and petrology collection record

Sample number S40026
Sample Donor Beer,K.E.
Rock name 'Original entry: Gneiss (Near Crush Zone)'
Stratigraphy Not entered
Comments Basement gneiss (near crush zone)
Locality details Shore N of Grotavig, 1.25 mile SE of lighthouse, Butt of Lewis
50k map sheet North Lewis ? (111)

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Map reference NB 532 651
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


S40026

Cross Polarized, S40026

Plane Polarized, S40026

Plane Polarized, S40026