BGS mineralogy and petrology collection record

Sample number	E10844; COLLNO245;
Sample Donor	Blake,Professor
Rock name	'Original entry: Albite-Biotite & Gneiss Biotite Gneiss'
Stratigraphy	Not entered
Comments	see mem. Geology of Anglesey pp 326-7 Mona Complex The Gneisses
Locality details	Ty-Newydd S. of Nebo
50k map sheet	Holyhead (93) View images in GeoScenic related to 'Holyhead' View the geology near 'Holyhead'
Map reference	SH 469 902
Year collected	Not entered
Bore name	Not applicable
Confidentiality	No restrictions

Petrological thin sections

Field of view: c. 31 mm.