BGS mineralogy and petrology collection record

Sample number S23471
Sample Donor Simpson,J.B.
Rock name 'Original entry: Felspathised Calc-Rock; Biotite, Diopside, K Feldspar'
Stratigraphy Not entered
Comments Edge of large pegmatite breaking into marble belt; Memoir, p. 17
Locality details Soa Island in Loch Breachacha
50k map sheet Coll (51)

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Map reference NM 1554 5518
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


S23471

Cross Polarized, S23471

Plane Polarized, S23471

Plane Polarized, S23471