BGS mineralogy and petrology collection record

Sample number E13150
Sample Donor Matley, C.A
Rock name Tuff. 'Original entry: Crystal Tuff'
Stratigraphy Not entered
Comments Manganese mine.
Locality details Nant-y-Gadwen Mines, Llanfaelrhys.
50k map sheet Aberdaron and Bardsey Island (133)

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Map reference
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, E13150

Plane Polarized, E13150

Plane Polarized, E13150