BGS mineralogy and petrology collection record

Sample number E64463; COLLNOTL94;
Sample Donor Not entered
Rock name Tuff. 'Original entry: Acid Ash Flow Tuff'
Stratigraphy Not entered
Comments About 40m above the base of the tuff unit(GROUP= Llewelyn Volcanic Group)(FORM= Capel Curig Volcanic Fm.)(MEMB= 4th. Member.)(IE=E)(TEXTURE=
Locality details N. ridge Tryfan, nr. wall
50k map sheet Bangor (106)

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View a geological map near 'Bangor'

Map reference SH 6633 6020
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, E64463

Plane Polarized, E64463

Plane Polarized, E64463