BGS mineralogy and petrology collection record

Sample number S45046
Sample Donor Haldane,D.; Phemister,J.;
Rock name 'Original entry: Biotite Tonalite, Qurtzose'
Stratigraphy Not entered
Comments Biotite tonalite, qurtzose/Norite, ?felspathised by pegmatite
Locality details N shore of Olna Firth, 100 yds SW of Pitt Croft
50k map sheet Central Shetland (128)

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Map reference HU 368 649
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


S45046

Cross Polarized, S45046

Plane Polarized, S45046

Plane Polarized, S45046