BGS mineralogy and petrology collection record

Sample number S35456
Sample Donor Macgregor,A.G.
Rock name 'Original entry: Quartzite'
Stratigraphy Not entered
Comments Basal Cambrian Quartzite; towards S end of island, base of low crags
Locality details Eilean Dubh, about 1300 yds NE of Portnancon, W side of Loch Eriboll
50k map sheet Tongue (114)

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Map reference NC 436 611
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


S35456

Cross Polarized, S35456

Plane Polarized, S35456

Plane Polarized, S35456