BGS mineralogy and petrology collection record

Sample number	E63278; COLLNOKB278;
Sample Donor	Not entered
Rock name	Dolerite (Synonymous With Microgabbro). 'Original entry: Dolerite'
Stratigraphy	Not entered
Comments	Narrow dyke of dolerite, intr. into Cwm Eigiau Fm.(GROUP= )(FORM= )(MEMB= .)(IE=I)(TEXTURE=
Locality details	Nant Mor/Croesor
50k map sheet	Snowdon (119) View images in GeoScenic related to 'Snowdon' View the geology near 'Snowdon'
Map reference	SH 6272 4514
Year collected	Not entered
Bore name	Not applicable
Confidentiality	No restrictions

Petrological thin sections

Field of view: c. 31 mm.