BGS mineralogy and petrology collection record

Sample number	E8426; COLLNO31;
Sample Donor	Calloway, G.A.
Rock name	'Original entry: Quartz Schist'
Stratigraphy	Not entered
Comments	See Anglesey Memoir pp.267-8. Mona Complex. Holyhead Qtzite.
Locality details	Holyhead Mountain
50k map sheet	South Stack (92) View images in GeoScenic related to 'South Stack' View a geological map near 'South Stack'
Map reference	SH 219 828
Year collected	Not entered
Bore name	Not applicable
Confidentiality	No restrictions

Petrological thin sections

Field of view: c. 31 mm.