BGS mineralogy and petrology collection record

Sample number	E25412; COLLNORH46;
Sample Donor	Hoare,R.H.
Rock name	Tuff. 'Original entry: Crystal Tuff'
Stratigraphy	Not entered
Comments	Isolated crags in field
Locality details	250 yds. at 300o from Tan-Yr-Alt; 1200 yds. at 250o from chapel at Henrhyd
50k map sheet	Bangor (106) View images in GeoScenic related to 'Bangor' View a geological map near 'Bangor'
Map reference	SH 763 745
Year collected	Not entered
Bore name	Not applicable
Confidentiality	No restrictions

Petrological thin sections

Field of view: c. 31 mm.