BGS mineralogy and petrology collection record

Sample number	S40265; COLLNOXN660;
Sample Donor	Wright,J.E.
Rock name	'Original entry: Biotite Quartz-Microdiorite'
Stratigraphy	Not entered
Comments	?Biotitic microdiorite from 2 ft cross-cutting sheet dipping WSW at c. 50 deg and cut by thin pegmatite vein; see Inv 126NW Note 2
Locality details	Eas Chia-aig waterfall, 1240 yds due N of Achnacarry Post Office
50k map sheet	Loch Eil (62) View images in GeoScenic related to 'Loch Eil' View the geology near 'Loch Eil'
Map reference	NN 1760 8887
Year collected	Not entered
Bore name	Not applicable
Confidentiality	No restrictions

Petrological thin sections

Field of view: c. 31 mm.