BGS mineralogy and petrology collection record

Sample number E28033; COLLNOAA135;
Sample Donor Archer,A.A.
Rock name Tuff. 'Original entry: Crystal Tuff'
Stratigraphy Not entered
Comments Lode hereabouts in Diabase (Sill). Valves of Pb+Zn generally good, but Lode is less well defined than usual with impregnation of wall rock. Presumably replacement textures? See-(N. Pennine Orefield Vol.1) CF E26705
Locality details Parc Mine, Llanwyrst. No.3 Level. Cross cut in footwall of Reservoir Lode
50k map sheet Bangor (106)

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Map reference SH 780 597
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, E28033

Plane Polarized, E28033

Plane Polarized, E28033