BGS mineralogy and petrology collection record

Sample number S35458
Sample Donor Macgregor,A.G.
Rock name 'Original entry: Quartzite'
Stratigraphy Not entered
Comments Basal Cambrian Quartzite; same locality as S.35455; near middle of crags
Locality details Creag na Griosaich, about 530 yds NNE of Portnancon, W side of Loch Eriboll
50k map sheet Tongue (114)

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Map reference NC 431 606
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


S35458

Cross Polarized, S35458

Plane Polarized, S35458

Plane Polarized, S35458