BGS mineralogy and petrology collection record

Sample number E63229; COLLNOKB229;
Sample Donor Not entered
Rock name Tuff. 'Original entry: Hyaloclastite'
Stratigraphy Not entered
Comments (GROUP= )(FORM= Dolgarrog Volcanic Fm.)(MEMB= .)(IE=E)(TEXTURE=Crystal rich
Locality details Afon Porthlwyd
50k map sheet Bangor (106)

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Map reference SH 7588 6720
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


E63229

Cross Polarized, E63229

Plane Polarized, E63229

Plane Polarized, E63229