BGS mineralogy and petrology collection record

Sample number S39818; COLLNOXN524;
Sample Donor Wright,J.E.
Rock name 'Original entry: Coarse Biotite Minchiquite (+?Nepheline)'
Stratigraphy Not entered
Comments From 3 ft ENE-WSW dyke; rather an unusual type
Locality details Allt a' Bhataich, 1590 yds S 42 deg W of Achnasaul
50k map sheet Loch Eil (62)

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Map reference NN 1439 8835
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


S39818

Cross Polarized, S39818

Plane Polarized, S39818

Plane Polarized, S39818