BGS mineralogy and petrology collection record

Sample number S42512
Sample Donor Phemister,J.
Rock name 'Original entry: Biotite-Oligoclase Gneiss'
Stratigraphy Not entered
Comments Semipelitic, ?K-permeated; subordinate microcline; slightly K-permeated
Locality details Shore of Ness 630 yds S by E of Westsandwick House
50k map sheet Yell (130)

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Map reference HU 448 780
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


S42512

Cross Polarized, S42512

Plane Polarized, S42512

Plane Polarized, S42512