BGS mineralogy and petrology collection record

Sample number E65752; COLLNOGW368;
Sample Donor Woodhall, D.G.
Rock name Not entered
Stratigraphy Not entered
Comments Coarse tuff (? Acid)
Locality details Stream N of Mynydd Gwerngraig
50k map sheet Barmouth (149)

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Map reference SH 7544 1470
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


E65752

Cross Polarized, E65752

Plane Polarized, E65752

Plane Polarized, E65752