BGS mineralogy and petrology collection record

Sample number	S40297; COLLNOXN748;
Sample Donor	Wright,J.E.
Rock name	'Original entry: ?Quartz-Microdiorite Or Lamprophyre'
Stratigraphy	Not entered
Comments	?Microdiorite from 4 ft, apparently concordant, sheet in flaggy psammite
Locality details	Allt Dubh, 2370 yds E 20 deg N of Ardachvie
50k map sheet	Loch Eil (62) View images in GeoScenic related to 'Loch Eil' View the geology near 'Loch Eil'
Map reference	NN 1615 9098
Year collected	Not entered
Bore name	Not applicable
Confidentiality	No restrictions

Petrological thin sections

Field of view: c. 31 mm.