BGS mineralogy and petrology collection record

Sample number E52436; COLLNOLB542;
Sample Donor Jackson,A.A
Rock name 'Original entry: Tuff Rhyolite'
Stratigraphy Not entered
Comments ? Rhyolite or tuff, Nr. contact with dolerite
Locality details 1240 m 290 deg from Pant Gwyn
50k map sheet Bala (136)

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Map reference SH 8376 2725
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


E52436

Cross Polarized, E52436

Plane Polarized, E52436

Plane Polarized, E52436