BGS mineralogy and petrology collection record

Sample number	E25297; COLLNO13/NE30;
Sample Donor	Stevenson,I.P.
Rock name	Not entered
Stratigraphy	Not entered
Comments	Sheared? Amygdaloidal Rhyolite Tuff
Locality details	1130 yds. E of Bwlch-Y-Gaer; 430 yds. N of Onen-Ebsyd
50k map sheet	Bangor (106) View images in GeoScenic related to 'Bangor' View a geological map near 'Bangor'
Map reference	SH 753 690
Year collected	Not entered
Bore name	Not applicable
Confidentiality	No restrictions

Petrological thin sections

Field of view: c. 31 mm.