BGS mineralogy and petrology collection record

Sample number	E48519; COLLNOLA521;
Sample Donor	Allen,P.M.
Rock name	'Original entry: Microtonalite'
Stratigraphy	Not entered
Comments	Microtonalite sill
Locality details	370 yds 14 deg from Cefn Cam
50k map sheet	Harlech (135) View images in GeoScenic related to 'Harlech' View the geology near 'Harlech'
Map reference	SH 6935 2566
Year collected	Not entered
Bore name	Not applicable
Confidentiality	No restrictions

Petrological thin sections

Field of view: c. 31 mm.