BGS mineralogy and petrology collection record

Sample number S35105
Sample Donor Phemister,J.
Rock name 'Original entry: Biotite Felsite, Granophyric'
Stratigraphy Not entered
Comments Biotite felsite, granophyric. Grey variation of granite
Locality details 4700 ft 24 deg N of W of N Loch of Spring Wells
50k map sheet Yell (130)

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Map reference HU 315 850
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


S35105

Cross Polarized, S35105

Plane Polarized, S35105

Plane Polarized, S35105