BGS mineralogy and petrology collection record

Sample number	E63136; COLLNOKB136;
Sample Donor	Not entered
Rock name	Dolerite (Synonymous With Microgabbro). 'Original entry: Dolerite'
Stratigraphy	Not entered
Comments	Intrusion in LCT. Llyn Eigiau sill(GROUP= )(FORM= )(MEMB= .)(IE=I)(TEXTURE=Slightly coarse
Locality details	Cwm Eigiau, Cedryn
50k map sheet	Bangor (106) View images in GeoScenic related to 'Bangor' View a geological map near 'Bangor'
Map reference	SH 7215 6410
Year collected	Not entered
Bore name	Not applicable
Confidentiality	No restrictions

Petrological thin sections

Field of view: c. 31 mm.