BGS mineralogy and petrology collection record

Sample number S4936
Sample Donor Barrow, G.
Rock name 'Original entry: Muscovite-Biotite Gneiss'
Stratigraphy Not entered
Comments Garnetiferous. See Memoir, p. 23
Locality details Caenlochan, schist approaching The Tolmount
50k map sheet Balmoral (65)

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Map reference NO 22 79
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


S4936

Cross Polarized, S4936

Plane Polarized, S4936

Plane Polarized, S4936