BGS mineralogy and petrology collection record

Sample number	E40323; COLLNOCE223;
Sample Donor	Evans,C.D.R.
Rock name	Not entered
Stratigraphy	Not entered
Comments	Middle of the Pen y Castell vitric crystal tuff
Locality details	1640 ft, 135 deg E of N of Honeston Shednr Melynllyn
50k map sheet	Bangor (106) View images in GeoScenic related to 'Bangor' View a geological map near 'Bangor'
Map reference	SH 7102 6534
Year collected	Not entered
Bore name	Not applicable
Confidentiality	No restrictions

Petrological thin sections

Field of view: c. 31 mm.