BGS mineralogy and petrology collection record

Sample number E26915; COLLNOFD25;
Sample Donor Dunning,F.W.
Rock name Not entered
Stratigraphy Not entered
Comments Contorted Vitric Tuffs(?), faultscarp of NW-SE fault (C28)
Locality details Scarp 450 yds. NW of Bryn-Y-Fawnog, by woods
50k map sheet Bangor (106)

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Map reference SH 769 596
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


E26915

Cross Polarized, E26915

Plane Polarized, E26915

Plane Polarized, E26915