BGS mineralogy and petrology collection record

Sample number S82912; COLLNOGX1316;
Sample Donor Mendum,J.R.
Rock name Tonalite. 'Original entry: Quartz Diorite'
Stratigraphy Not entered
Comments Black/white biotite quartz diorite
Locality details Burn of Altduthrie 125m 290deg from Bachnagairn
50k map sheet Ballater (65E)

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Map reference NO 2539 7954
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


Cross Polarized, S82912

Plane Polarized, S82912

Plane Polarized, S82912