BGS mineralogy and petrology collection record

Sample number E64230; COLLNOKB1230;
Sample Donor Not entered
Rock name Tuff. 'Original entry: Acid Ash Flow Tuff'
Stratigraphy Not entered
Comments 30m above base of non-welded unit, crystal rich(GROUP= Snowdon Volcanic Group)(FORM= Lower Rhyolitic Tuff Fm.)(MEMB= .)(IE=E)(TEXTURE=Cleaved
Locality details Cwm Tregalan
50k map sheet Snowdon (119)

View images in GeoScenic related to 'Snowdon'

View the geology near 'Snowdon'

Map reference SH 6141 5372
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


E64230

Cross Polarized, E64230

Plane Polarized, E64230

Plane Polarized, E64230