BGS mineralogy and petrology collection record

Sample number E52455; COLLNOMH883;
Sample Donor Howells,M.F.
Rock name Not entered
Stratigraphy Not entered
Comments Tuff, unwelded? associated qtz veins. Caradoc, Ordovician.
Locality details E of Beudy-Mawr. S of Llanberis Pass
50k map sheet Bangor (106)

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Map reference SH 6340 5583
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


E52455

Cross Polarized, E52455

Plane Polarized, E52455

Plane Polarized, E52455