BGS mineralogy and petrology collection record

Sample number E64139; COLLNOKB1139;
Sample Donor Not entered
Rock name Rhyolite. 'Original entry: Basic Tuff'
Stratigraphy Not entered
Comments In situ wall rock of adit(GROUP= Crafnant Volcanic Group)(FORM= Dolgarrog Volcanic Fm.)(MEMB= .)(IE=)(TEXTURE=Altered. Sericitised basic rock
Locality details Cae Loch, Dolgarrog
50k map sheet Bangor (106)

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Map reference SH 7607 6586
Year collected Not entered 
Bore name Not applicable
Confidentiality No restrictions