BGS mineralogy and petrology collection record

Sample number E63448; COLLNOKB448;
Sample Donor Not entered
Rock name Rhyolite. 'Original entry: Rhyolite'
Stratigraphy Not entered
Comments In contact with Nant Ffrancon Fm and LRT welded(GROUP= )(FORM= )(MEMB= .)(IE=I)(TEXTURE=Massive, fsparphyric
Locality details Yr Arddu, Cefn y cerrig
50k map sheet Snowdon (119)

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View the geology near 'Snowdon'

Map reference SH 6695 5495
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


E63448

Cross Polarized, E63448

Plane Polarized, E63448

Plane Polarized, E63448