BGS mineralogy and petrology collection record

Sample number S4931; S4931/a; S4931/b;
Sample Donor Barrow, G.
Rock name 'Original entry: Muscovite-Biotite Schist'
Stratigraphy Not entered
Comments Fine grained; grey; Mem. Sh. 55, pp. 47, 92-93
Locality details S of SW end of Ben Vuirich Granite
50k map sheet Blair Atholl (55)

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Map reference NN 975 659
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


S4931

Cross Polarized, S4931

Plane Polarized, S4931

Plane Polarized, S4931


S4931/a

Cross Polarized, S4931/a

Plane Polarized, S4931/a

Plane Polarized, S4931/a


S4931/b

Cross Polarized, S4931/b

Plane Polarized, S4931/b

Plane Polarized, S4931/b