BGS mineralogy and petrology collection record

Sample number	E30768; MR9225; COLLNOJ553;
Sample Donor	Jones,T.G.
Rock name	Not entered
Stratigraphy	Not entered
Comments	Grey Rhyolite
Locality details	Disused Quarry., 100 yds. S of Hafod Yrhaf. 2.5 miles SW of Bangor
50k map sheet	Bangor (106) View images in GeoScenic related to 'Bangor' View the geology near 'Bangor'
Map reference	SH 551 689
Year collected	Not entered
Bore name	Not applicable
Confidentiality	No restrictions

Petrological thin sections

Field of view: c. 31 mm.