BGS mineralogy and petrology collection record

Sample number E52316; COLLNOLB556;
Sample Donor Jackson,A.A
Rock name 'Original entry: Tuff'
Stratigraphy Not entered
Comments Acid tuff, crystal rich, or dolerite; abundant pyrite
Locality details 750 m 353 deg from Benglog
50k map sheet Bala (136)

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Map reference SH 8050 2423
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


E52316

Cross Polarized, E52316

Plane Polarized, E52316

Plane Polarized, E52316