BGS mineralogy and petrology collection record

Sample number E63450; COLLNOKB450;
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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Map reference SH 6645 5533
Year collected Not entered 
Bore name Not applicable
Confidentiality No restrictions