BGS mineralogy and petrology collection record

Sample number S41688
Sample Donor Phemister,J.
Rock name 'Original entry: Muscovite-Biotite-Oligoclase Gneiss'
Stratigraphy Not entered
Comments Semipelitic gneiss with numerous feldspar augen; migmatite
Locality details Hillside above Papil Water, 2200 ft 17 deg S of W of Tresta Church
50k map sheet Yell (130)

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Map reference HU 601 903
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


S41688

Cross Polarized, S41688

Plane Polarized, S41688

Plane Polarized, S41688