BGS mineralogy and petrology collection record

Sample number E62058; COLLNOGW96;
Sample Donor Woodhall, D.G.
Rock name Tuff, Metamorphosed.
Stratigraphy Not entered
Comments Field name: Cong. Sst. Thin section: fine-grained quartzo-feldspathic rock with localised patches of recrystallised alkali- & plagioclase feldspar, probable igneous protolith
Locality details 525 m 027 deg from Bryn Brith; 5.4 Km NE of Fairbourne Stn.
50k map sheet Barmouth (149)

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Map reference SH 6668 1583
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, E62058

Plane Polarized, E62058

Plane Polarized, E62058