BGS mineralogy and petrology collection record

Sample number	E10247; COLLNO459;
Sample Donor	Greenly,E.
Rock name	'Original entry: Silicified Felsite'
Stratigraphy	Not entered
Comments	Palaeozoic. Porphyritic. See ANAL.MEM. 1931p.102
Locality details	Brow of N. Scarp about 800ft. ENE.of Windmill, Pary's Mountain
50k map sheet	Holyhead (93) View images in GeoScenic related to 'Holyhead' View the geology near 'Holyhead'
Map reference	SH 445 907
Year collected	Not entered
Bore name	Not applicable
Confidentiality	No restrictions

Petrological thin sections

Field of view: c. 31 mm.