BGS mineralogy and petrology collection record

Sample number	E26285; MR19834; COLLNO3;
Sample Donor	Eyles,V.A.
Rock name	Lamprophyres; Monchiquite;. 'Original entry: Monchiquite With Peridotite Xenolith'
Stratigraphy	Not entered
Comments	? Cognate xenolith in monchiquite intrusion in volcanic vent.
Locality details	Near Great House, 4 miles WNW. of Shirenewton, near Argoed House 1 mile WNW of Shirenewton
50k map sheet	Chepstow (250) View images in GeoScenic related to 'Chepstow' View a geological map near 'Chepstow'
Map reference	ST 420 968
Year collected	Not entered
Bore name	Not applicable
Confidentiality	No restrictions

Petrological thin sections

Field of view: c. 31 mm.