BGS mineralogy and petrology collection record

Sample number	E64345; COLLNOKB1345;
Sample Donor	Not entered
Rock name	Dolerite (Synonymous With Microgabbro). 'Original entry: Dolerite'
Stratigraphy	Not entered
Comments	Weathered. Fresh K feldspar, Carlsbad twinned, in fine groundmass. XR MSA 64. Possibly Moelwyn.(GROUP= )(FORM= )(MEMB= .)(IE=)(TEXTURE=
Locality details	Opposite Ty Obry Farm
50k map sheet	Snowdon (119) View images in GeoScenic related to 'Snowdon' View the geology near 'Snowdon'
Map reference	SH 6059 3990
Year collected	Not entered
Bore name	Not applicable
Confidentiality	No restrictions

Petrological thin sections

Field of view: c. 31 mm.