BGS mineralogy and petrology collection record

Sample number	E10901; COLLNO302;
Sample Donor	Blake,Professor
Rock name	'Original entry: Hornblende-Gneiss'
Stratigraphy	Not entered
Comments	Mona Complex. The Gneisses. See Mem.Geol.of Anglesey.p.377. Much saussuritised.
Locality details	Near Plas Gwyn Lodge, Pentraeth
50k map sheet	Llandudno (94) View images in GeoScenic related to 'Llandudno' View the geology near 'Llandudno'
Map reference	SH 528 782
Year collected	Not entered
Bore name	Not applicable
Confidentiality	No restrictions

Petrological thin sections

Field of view: c. 31 mm.