BGS mineralogy and petrology collection record

Sample number	E10977; COLLNO58;
Sample Donor	Matley, C.A
Rock name	'Original entry: Limestone'
Stratigraphy	Not entered
Comments	see mem. Geology of Anglesey p 296 Similar composition from old mine-level Llanfair-y-nghornwy Beds Mona Complex Gwna Beds
Locality details	Tyn-y-Maen Llanfais-y-nghornwy
50k map sheet	Holyhead (93) View images in GeoScenic related to 'Holyhead' View the geology near 'Holyhead'
Map reference	SH 319 911
Year collected	Not entered
Bore name	Not applicable
Confidentiality	No restrictions

Petrological thin sections

Field of view: c. 31 mm.