BGS mineralogy and petrology collection record

Sample number	E63174; COLLNOKB174;
Sample Donor	Not entered
Rock name	Rhyolite. 'Original entry: Rhyolite'
Stratigraphy	Not entered
Comments	About 15m above base of 1st. unit(GROUP= Llewelyn Volcanic Group)(FORM= Braich tu du Volc. Fm.)(MEMB= No.1 unit.)(IE=E)(TEXTURE=
Locality details	Braich tu du type section
50k map sheet	Bangor (106) View images in GeoScenic related to 'Bangor' View a geological map near 'Bangor'
Map reference	SH 6490 6220
Year collected	Not entered
Bore name	Not applicable
Confidentiality	No restrictions

Petrological thin sections

Field of view: c. 31 mm.