BGS mineralogy and petrology collection record

Sample number E64398; COLLNOTL29;
Sample Donor Not entered
Rock name Tuff. 'Original entry: Acid Ash Flow Tuff'
Stratigraphy Not entered
Comments 3m above base of ash-flow unit(GROUP= Snowdon Volcanic Group)(FORM= Lower Crafnant Volc. Fm.)(MEMB= No.3 Tuff.)(IE=E)(TEXTURE=
Locality details Creigiau Gleision, Cowlyd
50k map sheet Bangor (106)

View images in GeoScenic related to 'Bangor'

View a geological map near 'Bangor'

Map reference SH 7316 6195
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, E64398

Plane Polarized, E64398

Plane Polarized, E64398