BGS mineralogy and petrology collection record

Sample number	E10941; COLLNO22;
Sample Donor	Matley, C.A
Rock name	'Original entry: Sodium Felsite'
Stratigraphy	Not entered
Comments	see mem. Geology of Anglesey pp 494-5:527 Albite phenocrysts,etc in complex pegmatic & spherulitic matrix Palaeozoic Intrusion
Locality details	Ridge N. of Coeden
50k map sheet	Holyhead (93) View images in GeoScenic related to 'Holyhead' View the geology near 'Holyhead'
Map reference	SH 370 901
Year collected	Not entered
Bore name	Not applicable
Confidentiality	No restrictions

Petrological thin sections

Field of view: c. 31 mm.