BGS mineralogy and petrology collection record

Sample number E64411; COLLNOTL42;
Sample Donor Not entered
Rock name Tuff. 'Original entry: Acid Ash Flow Tuff'
Stratigraphy Not entered
Comments Staining along cleavage planes(GROUP= Snowdon Volcanic Group)(FORM= Upper Crafnant Volc. Fm.)(MEMB= .)(IE=E)(TEXTURE=Cleaved
Locality details Road, Cwm Llanerch, Be. y C
50k map sheet Bangor (106)

View images in GeoScenic related to 'Bangor'

View a geological map near 'Bangor'

Map reference SH 7978 5776
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, E64411

Plane Polarized, E64411

Plane Polarized, E64411