BGS mineralogy and petrology collection record

Sample number	S30412; S30412/A; COLLNOTR172;
Sample Donor	Robertson,T.
Rock name	'Original entry: Muscovite-Chlorite-Oligoclase Gneiss'
Stratigraphy	Not entered
Comments	Gneiss; diaphthoretic pelite with shimmer aggregate, Na and SiO2 permeated
Locality details	S14. W side of Whalsay, 610 yds SSW of the old manse
50k map sheet	Central Shetland (128) View images in GeoScenic related to 'Central Shetland' View the geology near 'Central Shetland'
Map reference	HU 541 635
Year collected	Not entered
Bore name	Not applicable
Confidentiality	No restrictions