BGS mineralogy and petrology collection record

Sample number E38920; E38920/B; COLLNOMH179;
Sample Donor Howells,M.F.
Rock name Not entered
Stratigraphy Not entered
Comments Silty tuff; crystal tuff clasts
Locality details NW of Bwlch y Gwynt
50k map sheet Bangor (106)

View images in GeoScenic related to 'Bangor'

View a geological map near 'Bangor'

Map reference SH 7740 6043
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


E38920

Cross Polarized, E38920

Plane Polarized, E38920

Plane Polarized, E38920


E38920/B

Cross Polarized, E38920/B

Plane Polarized, E38920/B

Plane Polarized, E38920/B