BGS mineralogy and petrology collection record

Sample number	E10665; COLLNO66;
Sample Donor	Blake,Professor
Rock name	'Original entry: Grit-Schist'
Stratigraphy	Not entered
Comments	Mona Complex. Prob.S.Stack Series See Mem.Geol.of Anglesey.1919.p.261. Quartz, feldspar, mica & heavy accessories. Blastopsammitic.
Locality details	Cleaved S.of Rhoscolyn
50k map sheet	Caernarfon (105) View images in GeoScenic related to 'Caernarfon' View the geology near 'Caernarfon'
Map reference	SH 269 755
Year collected	Not entered
Bore name	Not applicable
Confidentiality	No restrictions

Petrological thin sections

Field of view: c. 31 mm.