BGS mineralogy and petrology collection record

Sample number	E8551; COLLNO575;
Sample Donor	Calloway, G.A.
Rock name	Not entered
Stratigraphy	Not entered
Comments	See Mem.Geol.of Anglesey c.f.pp.322-3.. Mona Complex. The Gneisses.
Locality details	N.of Y-Werthyr
50k map sheet	Holyhead (93) View images in GeoScenic related to 'Holyhead' View a geological map near 'Holyhead'
Map reference	SH 373 782
Year collected	Not entered
Bore name	Not applicable
Confidentiality	No restrictions

Petrological thin sections

Field of view: c. 31 mm.