BGS mineralogy and petrology collection record

Sample number E63140; COLLNOKB140;
Sample Donor Not entered
Rock name Rhyolite. 'Original entry: Rhyolite'
Stratigraphy Not entered
Comments Middle of intrusion in Middle/Upper Crafnant VF(GROUP= )(FORM= )(MEMB= .)(IE=I)(TEXTURE=
Locality details Waen Bryn Gwenith
50k map sheet Bangor (106)

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Map reference SH 7500 6773
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


E63140

Cross Polarized, E63140

Plane Polarized, E63140

Plane Polarized, E63140