BGS mineralogy and petrology collection record

Sample number	E11079; COLLNO160;
Sample Donor	Matley, C.A
Rock name	'Original entry: Oolitic Ironstone.'
Stratigraphy	Not entered
Comments	Ordovician. Glenkiln. See Mem.Geol.of Anglesey. pp.465:847.Pl.XXV111.fig.1. Quartz, limonite, goethite. Quasi-limonite. Llandeilo oolitic ferruginous mudstone. Photo.
Locality details	S.of Mynydd-y-Garn, W.of Bwlch.
50k map sheet	Holyhead (93) View images in GeoScenic related to 'Holyhead' View the geology near 'Holyhead'
Map reference	SH 319 897
Year collected	Not entered
Bore name	Not applicable
Confidentiality	No restrictions

Petrological thin sections

Field of view: c. 31 mm.