BGS mineralogy and petrology collection record

Sample number	E10940; COLLNO21;
Sample Donor	Matley, C.A
Rock name	'Original entry: Sodium Felsite'
Stratigraphy	Not entered
Comments	Albite Phenocrysts and Chloritic Pseudomorphs in a sub-spherulitic matrix Dyke Palaeozoic Intrusion
Locality details	Near Hen Blas Llanfechell
50k map sheet	Holyhead (93) View images in GeoScenic related to 'Holyhead' View the geology near 'Holyhead'
Map reference	SH 361 911
Year collected	Not entered
Bore name	Not applicable
Confidentiality	No restrictions

Petrological thin sections

Field of view: c. 31 mm.