BGS mineralogy and petrology collection record

Sample number S8139
Sample Donor Barrow, G.
Rock name 'Original entry: ?'
Stratigraphy Not entered
Comments Medium grained rock. Plagioclase, labradorite, green hornblende, biotite. Hypersthene, iron ores, garnet and quartz as accessories. See Memoir, p. 58
Locality details Head of Brachlie Burn
50k map sheet Balmoral (65)

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Map reference NO 389 935
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


S8139

Cross Polarized, S8139

Plane Polarized, S8139

Plane Polarized, S8139