BGS mineralogy and petrology collection record

Sample number E61962; COLLNOMH1563;
Sample Donor Howells,M.F.
Rock name Rhyolite.
Stratigraphy Not entered
Comments Blue, fine grained acid tuff, foliated
Locality details N of Mynydd Pencoed
50k map sheet Barmouth (149)

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Map reference SN 6966 1124
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, E61962

Plane Polarized, E61962

Plane Polarized, E61962