BGS mineralogy and petrology collection record

Sample number	E10877; COLLNO278;
Sample Donor	Blake,Professor
Rock name	'Original entry: Deformed Grit'
Stratigraphy	Not entered
Comments	Mona Complex. Gwna beds. See Mem.Geol.of Anglesey.p.380. Quartz-grit with some albite. Matrix partly granoblastic.
Locality details	Rounded knob in rubbish RR. Gwladys
50k map sheet	Caernarfon (105) View images in GeoScenic related to 'Caernarfon' View the geology near 'Caernarfon'
Map reference	SH 40 65
Year collected	Not entered
Bore name	Not applicable
Confidentiality	No restrictions

Petrological thin sections

Field of view: c. 31 mm.