BGS mineralogy and petrology collection record

Sample number	E47480; COLLNOLA440;
Sample Donor	Allen,P.M.
Rock name	'Original entry: Microdiorite'
Stratigraphy	Not entered
Comments	Microdiorite
Locality details	320 yds 40 deg from Pont Wen
50k map sheet	Harlech (135) View images in GeoScenic related to 'Harlech' View the geology near 'Harlech'
Map reference	SH 7391 2297
Year collected	Not entered
Bore name	Not applicable
Confidentiality	No restrictions

Petrological thin sections

Field of view: c. 31 mm.