BGS mineralogy and petrology collection record

Sample number E61107; COLLNOMH1458;
Sample Donor Howells,M.F.
Rock name Tuff. 'Original entry: Dolerite'
Stratigraphy Not entered
Comments Coarse ? Dolerite
Locality details E of Clynnau Cregennen
50k map sheet Barmouth (149)

View images in GeoScenic related to 'Barmouth'

View a geological map near 'Barmouth'

Map reference SH 6692 1424
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


Cross Polarized, E61107

Plane Polarized, E61107

Plane Polarized, E61107