BGS mineralogy and petrology collection record

Sample number S42849
Sample Donor Phemister,J.
Rock name 'Original entry: Hornblendic Gneiss'
Stratigraphy Not entered
Comments New poikiloblastic hornblende; turbid epidote; granulitised feldspar
Locality details W side of Mill Loch, 700 ft from centre of large island
50k map sheet Yell (130)

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Map reference HU 330 901
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


S42849

Cross Polarized, S42849

Plane Polarized, S42849

Plane Polarized, S42849