BGS mineralogy and petrology collection record

Sample number	E64272; COLLNOKB1272;
Sample Donor	Not entered
Rock name	Rhyolite. 'Original entry: Rhyolite'
Stratigraphy	Not entered
Comments	Highly altered(GROUP= )(FORM= )(MEMB= .)(IE=E)(TEXTURE=
Locality details	South of Cwt y Bugail
50k map sheet	Snowdon (119) View images in GeoScenic related to 'Snowdon' View a geological map near 'Snowdon'
Map reference	SH 7305 4573
Year collected	Not entered
Bore name	Not applicable
Confidentiality	No restrictions

Petrological thin sections

Field of view: c. 31 mm.