BGS mineralogy and petrology collection record

Sample number	E9951; COLLNO163;
Sample Donor	Greenly,E.
Rock name	'Original entry: Biotite Gneiss'
Stratigraphy	Not entered
Comments	Not entered
Locality details	Pen-yr-Orsedd, NW.B.M.180.7
50k map sheet	Holyhead (93) View images in GeoScenic related to 'Holyhead' View the geology near 'Holyhead'
Map reference	SH 384 800
Year collected	Not entered
Bore name	Not applicable
Confidentiality	No restrictions

Petrological thin sections

Field of view: c. 31 mm.