BGS mineralogy and petrology collection record

Sample number E67057; COLLNOWPR51C;
Sample Donor Pratt, W.
Rock name 'Original entry: Tuff'
Stratigraphy Not entered
Comments Arthog Formation. Tuff
Locality details 240 m at 118 deg from Castell
50k map sheet Barmouth (149)

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View the geology near 'Barmouth'

Map reference SH 5837 0481
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


E67057

Cross Polarized, E67057

Plane Polarized, E67057

Plane Polarized, E67057