BGS mineralogy and petrology collection record

Sample number	E26483; MR20227; COLLNO1;
Sample Donor	Eyles,V.A.
Rock name	Monchiquite. 'Original entry: Monchiquite'
Stratigraphy	Not entered
Comments	Between WNW. and EW. , Dyke, c. 6' across. Cutting Downtonian sediments.
Locality details	220 Yds. SE. of Glen Court, 2.5 miles SE. of Usk.
50k map sheet	Chepstow (250) View images in GeoScenic related to 'Chepstow' View a geological map near 'Chepstow'
Map reference	ST 404 984
Year collected	Not entered
Bore name	Not applicable
Confidentiality	No restrictions

Petrological thin sections

Field of view: c. 31 mm.