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 the geology 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.