BGS mineralogy and petrology collection record

Sample number S18001; S18001/B; S18001/a;
Sample Donor Tait,D.
Rock name 'Original entry: Sillimanite Buchite'
Stratigraphy Not entered
Comments Passing in the direction of the igneous rock into a sillimanite-cordierite buchite; QJGS, Vol. 78, 1922, Plate VII, Fig. 4, p. 244; Memoir, pp. 272, 274, 275 &Fig. 46C
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


S18001

Cross Polarized, S18001

Plane Polarized, S18001

Plane Polarized, S18001


S18001/B

Cross Polarized, S18001/B

Plane Polarized, S18001/B

Plane Polarized, S18001/B


S18001/a

Cross Polarized, S18001/a

Plane Polarized, S18001/a

Plane Polarized, S18001/a