BGS mineralogy and petrology collection record

Sample number	E10127; COLLNO339;
Sample Donor	Greenly,E.
Rock name	'Original entry: Quartzite'
Stratigraphy	Not entered
Comments	See Anglesey Memoir p.257. Mona Complex. Holyhead Qtzite. "Massive type"
Locality details	Hollyhead Mountain. N. Slopes
50k map sheet	South Stack (92) View images in GeoScenic related to 'South Stack' View a geological map near 'South Stack'
Map reference	SH 220 832
Year collected	Not entered
Bore name	Not applicable
Confidentiality	No restrictions

Petrological thin sections

Field of view: c. 31 mm.