BGS mineralogy and petrology collection record

Sample number	S41128; COLLNOXN1041;
Sample Donor	Wright,J.
Rock name	'Original entry: Quartz-Diorite (Tonale Type)'
Stratigraphy	Not entered
Comments	Coarse biotite diorite from irregular vein cutting medium- and fine-grained varieties of diorite: "coarse marginal type" of JGC Anderson
Locality details	Allt na Caillich, 2080 yds E 1 deg N of Inverlochy Castle
50k map sheet	Loch Eil (62) View images in GeoScenic related to 'Loch Eil' View the geology near 'Loch Eil'
Map reference	NN 1574 7664
Year collected	Not entered
Bore name	Not applicable
Confidentiality	No restrictions

Petrological thin sections

Field of view: c. 31 mm.