BGS mineralogy and petrology collection record

Sample number E64399; COLLNOTL30;
Sample Donor Not entered
Rock name Tuff. 'Original entry: Acid Ash Flow Tuff'
Stratigraphy Not entered
Comments 20m above base of ash-flow unit(GROUP= Snowdon Volcanic Group)(FORM= Lower Crafnant Volc. Fm.)(MEMB= No.3 Tuff.)(IE=E)(TEXTURE=
Locality details Creigiau Gleision, Cowlyd
50k map sheet Bangor (106)

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View the geology near 'Bangor'

Map reference SH 7322 6201
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


E64399

Cross Polarized, E64399

Plane Polarized, E64399

Plane Polarized, E64399