BGS mineralogy and petrology collection record

Sample number E63175; COLLNOKB175;
Sample Donor Not entered
Rock name Rhyolite. 'Original entry: Rhyolite'
Stratigraphy Not entered
Comments Lowest rhyolite, middle of flow unit, 40m above base(GROUP= Llewelyn Volcanic Group)(FORM= Braich tu du Volc. Fm.)(MEMB= No.1 unit.)(IE=E)(TEXTURE=
Locality details Braich tu du type section
50k map sheet Bangor (106)

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Map reference SH 6490 6220
Year collected Not entered 
Bore name Not applicable
Confidentiality No restrictions