BGS mineralogy and petrology collection record

Sample number E50030; COLLNOMH774;
Sample Donor Howells,M.F.
Rock name Not entered
Stratigraphy Not entered
Comments Massive Hornstone tuff
Locality details Cwmglas Bach, S side Lanberis Pass
50k map sheet Bangor (106)

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Map reference SH 6086 5696
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


E50030

Cross Polarized, E50030

Plane Polarized, E50030

Plane Polarized, E50030