BGS mineralogy and petrology collection record

Sample number S39750; COLLNOYB316;
Sample Donor Lawrie,T.R.M.
Rock name 'Original entry: Microdiorite'
Stratigraphy Not entered
Comments Concordant sheet, c. 15 ft, similar to type of S. 39748-39749; banding less well-defined with feldspathic schlieren and irregular dark patches and streaks; microdiorite
Locality details R Spean, right bank, 1030 yds W 1.5 deg N of juction of Inverness and Gairlochy roads
50k map sheet Loch Eil (62)

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Map reference NN 1996 8235
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


S39750

Cross Polarized, S39750

Plane Polarized, S39750

Plane Polarized, S39750