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) View images in GeoScenic related to 'Snowdon' View the geology near 'Snowdon'
Map reference	SH 7340 4538
Year collected	Not entered
Bore name	Not applicable
Confidentiality	No restrictions

Petrological thin sections

Field of view: c. 31 mm.