BGS mineralogy and petrology collection record

Sample number	E47187; COLLNOLA389;
Sample Donor	Allen,P.M.
Rock name	'Original entry: Sandstone Greywacke'
Stratigraphy	Not entered
Comments	Greywacke
Locality details	630 yds 152 deg from Tyn y Llwyn
50k map sheet	Harlech (135) View images in GeoScenic related to 'Harlech' View the geology near 'Harlech'
Map reference	SH 7130 2087
Year collected	Not entered
Bore name	Not applicable
Confidentiality	No restrictions

Petrological thin sections

Field of view: c. 31 mm.