BGS mineralogy and petrology collection record

Sample number	E67331; COLLNOBRM1750;
Sample Donor	Merriman,R.J.
Rock name	Not entered
Stratigraphy	Not entered
Comments	Thin intrusion in slate. ? Llaniwn
Locality details	Road cut, 6.6 Km NE of Builth Wells
50k map sheet	Builth (196) View images in GeoScenic related to 'Builth' View a geological map near 'Builth'
Map reference	SO 096 550
Year collected	Not entered
Bore name	Not applicable
Confidentiality	No restrictions

Petrological thin sections

Field of view: c. 31 mm.