BGS mineralogy and petrology collection record

Sample number E63180; COLLNOKB180;
Sample Donor Not entered
Rock name Rhyolite. 'Original entry: Rhyolite'
Stratigraphy Not entered
Comments At top of flow unit. Radioactive(GROUP= Llewelyn Volcanic Group)(FORM= Braich tu du Volc. Fm.)(MEMB= No.3 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

Petrological thin sections

Links to high resolution images

Transition from XPL to PPL light


Cross Polarized, E63180

Plane Polarized, E63180

Plane Polarized, E63180