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 the geology 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.