BGS mineralogy and petrology collection record

Sample number	E18099; COLLNOM216;
Sample Donor	Matley, C.A
Rock name	'Original entry: Feldspathic Grit, Granulitic Matrix'
Stratigraphy	Not entered
Comments	Menevian Grit, (Quartzite)
Locality details	Gwynfynydd Gold Mine Work
50k map sheet	Harlech (135) View images in GeoScenic related to 'Harlech' View the geology near 'Harlech'
Map reference
Year collected	Not entered
Bore name	Not applicable
Confidentiality	No restrictions

Petrological thin sections

Field of view: c. 31 mm.