BGS mineralogy and petrology collection record

Sample number S16612; S16612/B; S16612/C;
Sample Donor Tait,D.
Rock name 'Original entry: Anorthite-Sapphire-Spinel Assemblage'
Stratigraphy Not entered
Comments Xenolith from tholeiite sill, anorthite, sapphire spinel; vesicles filled with analcime; Memoir, pp. 34-35, 273, 275, Fig. 46A; QJGS, Vol. 78, 1922, pp. 236, 238
Locality details Nuns' Pass & Rubh' a' Chromain
50k map sheet Mull (44)

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Map reference NM 522 203
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


S16612

Cross Polarized, S16612

Plane Polarized, S16612

Plane Polarized, S16612


S16612/B

Cross Polarized, S16612/B

Plane Polarized, S16612/B

Plane Polarized, S16612/B


S16612/C

Cross Polarized, S16612/C

Plane Polarized, S16612/C

Plane Polarized, S16612/C