BGS mineralogy and petrology collection record

Sample number E63676; COLLNOKB676;
Sample Donor Not entered
Rock name Tuff. 'Original entry: Acid Tuff'
Stratigraphy Not entered
Comments 10m above base at Ynys Cerrig-duon(GROUP= )(FORM= Nant Ffrancon Fm.)(MEMB= Y Glog Unit 1.)(IE=E)(TEXTURE=Welded
Locality details Tremadoc
50k map sheet Snowdon (119)

View images in GeoScenic related to 'Snowdon'

View a geological map near 'Snowdon'

Map reference SH 5730 3910
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, E63676

Plane Polarized, E63676

Plane Polarized, E63676