BGS mineralogy and petrology collection record

Sample number	E25678; COLLNOEE232;
Sample Donor	Elliot,R.W.
Rock name	Not entered
Stratigraphy	Not entered
Comments	Dolerite. Contact between dolerite and pegmatite vein. Carn Trelwyd-Carnedd. Lleithr Sill.
Locality details	Northern peak of Carn Trelwyd. 850 Yds. at 8.5 deg. W. of N. of Methodist Chapel. Treleddyd-Fawr.
50k map sheet	St. Davids (209) View images in GeoScenic related to 'St. Davids' View a geological map near 'St. Davids'
Map reference	SM 752 287
Year collected	Not entered
Bore name	Not applicable
Confidentiality	No restrictions

Petrological thin sections

Field of view: c. 31 mm.