BGS mineralogy and petrology collection record

Sample number E63690; COLLNOKB690;
Sample Donor Not entered
Rock name Tuff. 'Original entry: Reworked Acid Tuff'
Stratigraphy Not entered
Comments 6m above Idwal Rhyolite(GROUP= Snowdon Volcanic Group)(FORM= Lower Rhyolitic Tuff Fm.)(MEMB= .)(IE=E)(TEXTURE=
Locality details Cwm Idwal
50k map sheet Bangor (106)

View images in GeoScenic related to 'Bangor'

View the geology near 'Bangor'

Map reference SH 6410 5879
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


E63690

Cross Polarized, E63690

Plane Polarized, E63690

Plane Polarized, E63690