BGS mineralogy and petrology collection record

Sample number	E39105; COLLNOCE48;
Sample Donor	Evans,C.D.R.
Rock name	Not entered
Stratigraphy	Not entered
Comments	Dark Grey vitric tuff 300ft from base
Locality details	870 yd 32deg E of N of Cairn in Bwlchy Ddeufaen
50k map sheet	Bangor (106) View images in GeoScenic related to 'Bangor' View the geology near 'Bangor'
Map reference	SH 7207 7237
Year collected	Not entered
Bore name	Not applicable
Confidentiality	No restrictions

Petrological thin sections

Field of view: c. 31 mm.