BGS mineralogy and petrology collection record

Sample number	E63313; COLLNOKB313;
Sample Donor	Not entered
Rock name	Rhyolite. 'Original entry: Rhyolite Composite'
Stratigraphy	Not entered
Comments	F-b parallel to contact with dolerite sill KB312(GROUP= )(FORM= )(MEMB= .)(IE=I)(TEXTURE=Flow-banded
Locality details	Llyn Cwm Corseog
50k map sheet	Snowdon (119) View images in GeoScenic related to 'Snowdon' View the geology near 'Snowdon'
Map reference	SH 6640 4740
Year collected	Not entered
Bore name	Not applicable
Confidentiality	No restrictions

Petrological thin sections

Field of view: c. 31 mm.