BGS mineralogy and petrology collection record

Sample number E61585; COLLNOMH1499;
Sample Donor Howells,M.F.
Rock name Not entered
Stratigraphy Not entered
Comments Silicious tuff, crystals small
Locality details N of Uwchygarreg
50k map sheet Barmouth (149)

View images in GeoScenic related to 'Barmouth'

View a geological map near 'Barmouth'

Map reference SN 6724 1115
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


E61585

Cross Polarized, E61585

Plane Polarized, E61585

Plane Polarized, E61585