BGS mineralogy and petrology collection record

Sample number E64346; COLLNOKB1346;
Sample Donor Not entered
Rock name Tuff. 'Original entry: Tuff'
Stratigraphy Not entered
Comments Abundant carbonate "blebs". XR MSA 66(GROUP= )(FORM= Moelwyn Volc. Fm.)(MEMB= .)(IE=E)(TEXTURE=Clast rich, vesicular
Locality details South side of Ynys Berfedd
50k map sheet Snowdon (119)

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Map reference SH 6002 3988
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, E64346

Plane Polarized, E64346

Plane Polarized, E64346