BGS mineralogy and petrology collection record

Sample number	E62051; COLLNOGW89;
Sample Donor	Woodhall, D.G.
Rock name	Tuff, Metamorphosed.
Stratigraphy	Not entered
Comments	Field name: Conglomeratic, ? Sst. Thin section: fine-grained quartzo-feldspathic rock with localised coarser patches of alkali- & plagioclase feldspar. Probable igneous protolith
Locality details	240 m 333 deg from Bryn Brith; 5.4 Km NE of Fairbourne Stn.
50k map sheet	Barmouth (149) View images in GeoScenic related to 'Barmouth' View the geology near 'Barmouth'
Map reference	SH 6635 1557
Year collected	Not entered
Bore name	Not applicable
Confidentiality	No restrictions

Petrological thin sections

Field of view: c. 31 mm.