BGS mineralogy and petrology collection record

Sample number	S92759; COLLNOLY654;
Sample Donor	Robertson,S.
Rock name	Gneiss. 'Original entry: Biotite Gneiss'
Stratigraphy	Not entered
Comments	Hornblende biotite amphibolitic gneiss
Locality details	Tasmach Cairn
50k map sheet	Blairgowrie (56) View images in GeoScenic related to 'Blairgowrie' View the geology near 'Blairgowrie'
Map reference	NO 2258 7145
Year collected	Not entered
Bore name	Not applicable
Confidentiality	No restrictions

Petrological thin sections

Field of view: c. 31 mm.