BGS mineralogy and petrology collection record

Sample number	E10662; COLLNO63;
Sample Donor	Blake,J.F.
Rock name	Not entered
Stratigraphy	Not entered
Comments	See Mem. Geol.of Anglesey pp.259:44. Mona Complex. S.Stack series Lleyn division. Quartz, albite, mica, etc. Rich in accessories. Blastopsammitic epiclastic micas
Locality details	Porth-y-Crug [Grug]
50k map sheet	South Stack (92) View images in GeoScenic related to 'South Stack' View a geological map near 'South Stack'
Map reference	SH 218 811
Year collected	Not entered
Bore name	Not applicable
Confidentiality	No restrictions

Petrological thin sections

Field of view: c. 31 mm.