BGS mineralogy and petrology collection record

Sample number E64274; COLLNOKB1274;
Sample Donor Not entered
Rock name Rhyolite. 'Original entry: Rhyolite'
Stratigraphy Not entered
Comments Highly altered(GROUP= )(FORM= )(MEMB= .)(IE=I)(TEXTURE=Flow banded
Locality details Upper end of Cwm Teigl
50k map sheet Snowdon (119)

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Map reference SH 7340 4538
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, E64274

Plane Polarized, E64274

Plane Polarized, E64274