BGS mineralogy and petrology collection record

Sample number	E63447; COLLNOKB447;
Sample Donor	Not entered
Rock name	Dolerite (Synonymous With Microgabbro). 'Original entry: Dolerite'
Stratigraphy	Not entered
Comments	Dyke, 100m from W contact against rhyolite(GROUP= )(FORM= )(MEMB= .)(IE=I)(TEXTURE=
Locality details	Yr Arddu, Cefn y cerrig
50k map sheet	Snowdon (119) View images in GeoScenic related to 'Snowdon' View a geological map near 'Snowdon'
Map reference	SH 6717 5509
Year collected	Not entered
Bore name	Not applicable
Confidentiality	No restrictions

Petrological thin sections

Field of view: c. 31 mm.