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 the geology 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.