BGS mineralogy and petrology collection record

Sample number	S30431; S30431/A; COLLNOTR191;
Sample Donor	Robertson,T.
Rock name	'Original entry: Muscovite-Biotite Gneiss'
Stratigraphy	Not entered
Comments	Muscovite-biotite gneiss
Locality details	S4. SW side of Isbister Loch, 200 yds SE of W end of loch, Whalsay
50k map sheet	Central Shetland (128) View images in GeoScenic related to 'Central Shetland' View the geology near 'Central Shetland'
Map reference	HU 574 643
Year collected	Not entered
Bore name	Not applicable
Confidentiality	No restrictions