BGS mineralogy and petrology collection record

Sample number E63151; COLLNOKB151;
Sample Donor Not entered
Rock name Tuff. 'Original entry: Quartz Latite Ash Flow Tuff'
Stratigraphy Not entered
Comments 10-12m above blocky base of flow(GROUP= Llewelyn Volcanic Group)(FORM= Foel Fras Volcanic Complex)(MEMB= .)(IE=E)(TEXTURE=Crystal rich
Locality details Isgolion Duon-Nant Fach
50k map sheet Bangor (106)

View images in GeoScenic related to 'Bangor'

View a geological map near 'Bangor'

Map reference SH 6770 6360
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, E63151

Plane Polarized, E63151

Plane Polarized, E63151