BGS mineralogy and petrology collection record

Sample number	E8407; COLLNO2;
Sample Donor	Calloway, G.A.
Rock name	'Original entry: Quartz-Felsite'
Stratigraphy	Not entered
Comments	Probably Palaeozoic dyke. See Mem.Geol.of Anglesey.p.529.cf.E.1071.
Locality details	S.of Pen-Garnisiog
50k map sheet	Caernarfon (105) View images in GeoScenic related to 'Caernarfon' View the geology near 'Caernarfon'
Map reference	SH 352 735
Year collected	Not entered
Bore name	Not applicable
Confidentiality	No restrictions

Petrological thin sections

Field of view: c. 31 mm.