BGS mineralogy and petrology collection record

Sample number E24577; COLLNOAA23;
Sample Donor Archer,A.A.
Rock name Tuff. 'Original entry: Crystal Vitric Tuff'
Stratigraphy Not entered
Comments Caverous near joints due to leaking of Ca Co3 ? Vitric Tuff
Locality details No.10 B.H. Llanwyrst - (Llanwysrt Mine)
50k map sheet Bangor (106)

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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, E24577

Plane Polarized, E24577

Plane Polarized, E24577