BGS mineralogy and petrology collection record

Sample number	E10908; COLLNO309;
Sample Donor	Blake,Professor
Rock name	'Original entry: Silicified Felsite'
Stratigraphy	Not entered
Comments	see mem. Geology of Anglesey pp 534-5:562 Siticified Phenocrysts [?] in a Micrcrystalline matrix Palaeozoic Metasomatism
Locality details	Parys Mountain
50k map sheet	Holyhead (93) View images in GeoScenic related to 'Holyhead' View the geology near 'Holyhead'
Map reference	SH 443 905
Year collected	Not entered
Bore name	Not applicable
Confidentiality	No restrictions

Petrological thin sections

Field of view: c. 31 mm.