BGS mineralogy and petrology collection record

Sample number	E63613; COLLNOKB613;
Sample Donor	Not entered
Rock name	Dolerite (Synonymous With Microgabbro). 'Original entry: Dolerite'
Stratigraphy	Not entered
Comments	Within Nant Ffrancon Formation, 30m from contact(GROUP= )(FORM= )(MEMB= .)(IE=I)(TEXTURE=
Locality details	Craig Llyn Llagi
50k map sheet	Snowdon (119) View images in GeoScenic related to 'Snowdon' View the geology near 'Snowdon'
Map reference	SH 6550 4857
Year collected	Not entered
Bore name	Not applicable
Confidentiality	No restrictions

Petrological thin sections

Field of view: c. 31 mm.