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 a geological map 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.