BGS mineralogy and petrology collection record

Sample number E63173; COLLNOKB173;
Sample Donor Not entered
Rock name Rhyolite. 'Original entry: Rhyolite'
Stratigraphy Not entered
Comments Lowest rhyolite of the Llewelyn Volc. Gp.(GROUP= Llewelyn Volcanic Group)(FORM= Braich tu du Volc. Fm.)(MEMB= .)(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

Links to high resolution images

Transition from XPL to PPL light


Cross Polarized, E63173

Plane Polarized, E63173

Plane Polarized, E63173