BGS mineralogy and petrology collection record

Sample number	E46607; COLLNOLA238;
Sample Donor	Allen,P.M.
Rock name	'Original entry: Diorite'
Stratigraphy	Not entered
Comments	Thick diorite sill
Locality details	230 yds 126 deg from Bryn Pydydd
50k map sheet	Harlech (135) View images in GeoScenic related to 'Harlech' View the geology near 'Harlech'
Map reference	SH 7420 2282
Year collected	Not entered
Bore name	Not applicable
Confidentiality	No restrictions

Petrological thin sections

Field of view: c. 31 mm.