BGS mineralogy and petrology collection record

Sample number E64218; COLLNOKB1218;
Sample Donor Not entered
Rock name Tuff. 'Original entry: Acid Tuff'
Stratigraphy Not entered
Comments Near base(GROUP= )(FORM= Nant Ffrancon Fm.)(MEMB= Penamnen Tuff.)(IE=E)(TEXTURE=
Locality details Crimea Pass
50k map sheet Snowdon (119)

View images in GeoScenic related to 'Snowdon'

View a geological map near 'Snowdon'

Map reference SH 6978 4951
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, E64218

Plane Polarized, E64218

Plane Polarized, E64218