BGS mineralogy and petrology collection record

Sample number	E39439; COLLNOCE147;
Sample Donor	Evans,C.D.R.
Rock name	Not entered
Stratigraphy	Not entered
Comments	Massive vitric tuff within 20m of Top Lower Unit in Capel Curig Ash Fall Tuff Group
Locality details	860 yd 127m E of N of Penydorth Goeh Drum Top Cairn
50k map sheet	Bangor (106) View images in GeoScenic related to 'Bangor' View the geology near 'Bangor'
Map reference	SH 7147 6916
Year collected	Not entered
Bore name	Not applicable
Confidentiality	No restrictions

Petrological thin sections

Field of view: c. 31 mm.