BGS mineralogy and petrology collection record

Sample number S20762
Sample Donor Anderson, E.M.
Rock name 'Original entry: Corundum-Anorthite Rock'
Stratigraphy Not entered
Comments Xenolith in inclined sheet of S. 20755, sapphire bearing; Memoir, p. 273
Locality details 900 yds S by W from cairn on Cruachan Min
50k map sheet Iona (43)

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Map reference NM 4450 2078
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


S20762

Cross Polarized, S20762

Plane Polarized, S20762

Plane Polarized, S20762