BGS mineralogy and petrology collection record

Sample number	S27257; COLLNODH672;
Sample Donor	Haldane,D.
Rock name	'Original entry: Granodiorite'
Stratigraphy	Not entered
Comments	K-permeated tonalite, microcline replacing oligoclase
Locality details	Sandside Quarry, Firth
50k map sheet	Central Shetland (128) View images in GeoScenic related to 'Central Shetland' View a geological map near 'Central Shetland'
Map reference	HU 4393 7390
Year collected	Not entered
Bore name	Not applicable
Confidentiality	No restrictions

Petrological thin sections

Field of view: c. 31 mm.