BGS mineralogy and petrology collection record

Sample number E61606; COLLNOMH1520;
Sample Donor Howells,M.F.
Rock name Not entered
Stratigraphy Not entered
Comments Dolerite
Locality details Gwernan Valley
50k map sheet Barmouth (149)

View images in GeoScenic related to 'Barmouth'

View a geological map near 'Barmouth'

Map reference SN 6907 1147
Year collected Not entered 
Bore name Not applicable
Confidentiality No restrictions

Petrological thin sections

Links to high resolution images

Transition from XPL to PPL light


E61606

Cross Polarized, E61606

Plane Polarized, E61606

Plane Polarized, E61606