BGS mineralogy and petrology collection record

Sample number	E1643
Sample Donor	Geikie,A.; Teall, J.J.H.;
Rock name	'Original entry: Altered Granite'
Stratigraphy	Not entered
Comments	Mona Complex. The Gneisses. See Mem.Geol.of Anglesey pp.328-9 Alkali feldspar, some of which albite
Locality details	S.of Porth Helygan
50k map sheet	Holyhead (93) View images in GeoScenic related to 'Holyhead' View the geology near 'Holyhead'
Map reference	SH 491 907
Year collected	Not entered
Bore name	Not applicable
Confidentiality	No restrictions