BGS mineralogy and petrology collection record

Sample number E66197; COLLNOWPR46;
Sample Donor Pratt, W.
Rock name Tuff. 'Original entry: Tuff'
Stratigraphy Not entered
Comments Basic tuff or lava ?
Locality details "Hut circle" NW of Afon Dyffryn.
50k map sheet Barmouth (149)

View images in GeoScenic related to 'Barmouth'

View a geological map near 'Barmouth'

Map reference SH 6315 1155
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, E66197

Plane Polarized, E66197

Plane Polarized, E66197