BGS mineralogy and petrology collection record

Sample number	E10832; COLLNO233;
Sample Donor	Blake,Professor
Rock name	'Original entry: Gneissord Granite'
Stratigraphy	Not entered
Comments	see mem. Geology of Anglesey p 328 Coarse Albite-biotite-granite [prob. Oligoclase] Mona Complex The Gneisses
Locality details	N. side of Porth Lygan (?Helygen)
50k map sheet	Holyhead (93) View images in GeoScenic related to 'Holyhead' View the geology near 'Holyhead'
Map reference	SH 491 909
Year collected	Not entered
Bore name	Not applicable
Confidentiality	No restrictions

Petrological thin sections

Field of view: c. 31 mm.