BGS mineralogy and petrology collection record

Sample number S18004
Sample Donor Tait,D.
Rock name 'Original entry: Sillimanite Buchite'
Stratigraphy Not entered
Comments Showing large crystals of anorthite, enclosing sillimanite, some spinels; QJGS, Vol. 78, 1922, Plate VII, Fig. 1; Memoir, p. 272
Locality details Coast 3500 ft slightly N of W of Ormsaig
50k map sheet Iona (43)

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Map reference NM 4362 2387
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


S18004

Cross Polarized, S18004

Plane Polarized, S18004

Plane Polarized, S18004