BGS mineralogy and petrology collection record

Sample number	E9798; COLLNO10;
Sample Donor	Greenly,E.
Rock name	'Original entry: Quartz & Siderite'
Stratigraphy	Not entered
Comments	Palaeozoic. See Anglesey Memoir.p.369
Locality details	Tan-yr-Wylfa, Llanddona
50k map sheet	Llandudno (94) View images in GeoScenic related to 'Llandudno' View the geology near 'Llandudno'
Map reference	SH 573 804
Year collected	Not entered
Bore name	Not applicable
Confidentiality	No restrictions

Petrological thin sections

Field of view: c. 31 mm.