BGS mineralogy and petrology collection record

Sample number	E50438; COLLNOLB464;
Sample Donor	Jackson,A.A
Rock name	'Original entry: Volcanic Rock'
Stratigraphy	Not entered
Comments	Intrusion in Maentwrog Formation
Locality details	125 m 174 deg from Top of Rhaedr du
50k map sheet	Harlech (135) View images in GeoScenic related to 'Harlech' View the geology near 'Harlech'
Map reference	SH 6667 3868
Year collected	Not entered
Bore name	Not applicable
Confidentiality	No restrictions

Petrological thin sections

Field of view: c. 31 mm.