BGS mineralogy and petrology collection record

Sample number	E46610; COLLNOLA241;
Sample Donor	Allen,P.M.
Rock name	'Original entry: Diorite'
Stratigraphy	Not entered
Comments	Thin diorite sill
Locality details	640 yds 280 deg from Gwern Oeferiaidd
50k map sheet	Harlech (135) View images in GeoScenic related to 'Harlech' View the geology near 'Harlech'
Map reference	SH 7361 2143
Year collected	Not entered
Bore name	Not applicable
Confidentiality	No restrictions

Petrological thin sections

Field of view: c. 31 mm.