BGS mineralogy and petrology collection record

Sample number E63449; COLLNOKB449;
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)

View images in GeoScenic related to 'Snowdon'

View a geological map near 'Snowdon'

Map reference SH 6680 5490
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, E63449

Plane Polarized, E63449

Plane Polarized, E63449