BGS mineralogy and petrology collection record

Sample number E61616; COLLNOMH1530;
Sample Donor Howells,M.F.
Rock name Rhyolite.
Stratigraphy Not entered
Comments Not entered
Locality details S of Dyffrydan
50k map sheet Barmouth (149)

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Map reference SN 6941 1146
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, E61616

Plane Polarized, E61616

Plane Polarized, E61616