BGS mineralogy and petrology collection record

Sample number	E48479; COLLNOLA481;
Sample Donor	Allen,P.M.
Rock name	'Original entry: Microdiorite'
Stratigraphy	Not entered
Comments	? Microdiorite
Locality details	90 yds 180 deg from Cefn Mailau
50k map sheet	Harlech (135) View images in GeoScenic related to 'Harlech' View the geology near 'Harlech'
Map reference	SH 7374 1875
Year collected	Not entered
Bore name	Not applicable
Confidentiality	No restrictions

Petrological thin sections

Field of view: c. 31 mm.