BGS mineralogy and petrology collection record

Sample number E64461; COLLNOTL92;
Sample Donor Not entered
Rock name Tuff. 'Original entry: Acid Ash Flow Tuff'
Stratigraphy Not entered
Comments 10m above base of tuff unit(GROUP= Llewelyn Volcanic Group)(FORM= Capel Curig Volcanic Fm.)(MEMB= 4th. Member.)(IE=E)(TEXTURE=
Locality details N. ridge of Tryfan
50k map sheet Bangor (106)

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Map reference SH 6642 6027
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


E64461

Cross Polarized, E64461

Plane Polarized, E64461

Plane Polarized, E64461