BGS mineralogy and petrology collection record

Sample number E66196; COLLNOWPR45;
Sample Donor Pratt, W.
Rock name Tuff. 'Original entry: Tuff'
Stratigraphy Not entered
Comments Degree of welding in tuff.
Locality details 360 m. WSW. of road junction at Planwydd-halyg.
50k map sheet Barmouth (149)

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View the geology near 'Barmouth'

Map reference SH 6448 1329
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, E66196

Plane Polarized, E66196

Plane Polarized, E66196