BGS mineralogy and petrology collection record

Sample number E64422; COLLNOTL53;
Sample Donor Not entered
Rock name Tuff. 'Original entry: Acid Ash Flow Tuff'
Stratigraphy Not entered
Comments Near base of ash-flow unit(GROUP= Llewelyn Volcanic Group)(FORM= Capel Curig Volcanic Fm.)(MEMB= 3rd. Member.)(IE=E)(TEXTURE=
Locality details Gallt yr Ogof
50k map sheet Bangor (106)

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Map reference SH 6928 5951
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


E64422

Cross Polarized, E64422

Plane Polarized, E64422

Plane Polarized, E64422