BGS mineralogy and petrology collection record

Sample number	S58692; COLLNOYR2041;
Sample Donor	Smith,D.I.
Rock name	'Original entry: Dark ?Tonalite'
Stratigraphy	Not entered
Comments	Dark ?tonalite: Caledonian
Locality details	Glen Lia - Loch Mhor tunnel, chainage 4100 ft
50k map sheet	Fort Augustus (73) View images in GeoScenic related to 'Fort Augustus' View the geology near 'Fort Augustus'
Map reference	NH 5153 2062
Year collected	Not entered
Bore name	Not applicable
Confidentiality	No restrictions

Petrological thin sections

Field of view: c. 31 mm.