BGS mineralogy and petrology collection record

Sample number	E63500; COLLNOKB500;
Sample Donor	Not entered
Rock name	Dolerite (Synonymous With Microgabbro). 'Original entry: Dolerite'
Stratigraphy	Not entered
Comments	Near centre of intrusio into NFF(GROUP= )(FORM= )(MEMB= .)(IE=I)(TEXTURE=F-g to m-g
Locality details	Rhyd Ddu-Llechog
50k map sheet	Snowdon (119) View images in GeoScenic related to 'Snowdon' View a geological map near 'Snowdon'
Map reference	SH 5840 5375
Year collected	Not entered
Bore name	Not applicable
Confidentiality	No restrictions

Petrological thin sections

Field of view: c. 31 mm.