BGS mineralogy and petrology collection record

Sample number	E18074; COLLNOM205;
Sample Donor	Matley, C.A
Rock name	Siltstone (Undifferentiated). 'Original entry: Sandy Siltstone'
Stratigraphy	Not entered
Comments	Gamlan Series
Locality details	120 yds W of Cae Gorcnwy
50k map sheet	Harlech (135) View images in GeoScenic related to 'Harlech' View a geological map near 'Harlech'
Map reference
Year collected	Not entered
Bore name	Not applicable
Confidentiality	No restrictions

Petrological thin sections

Field of view: c. 31 mm.