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 a geological map 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.