BGS mineralogy and petrology collection record

Sample number E14421; COLLNOLP243;
Sample Donor Matley, C.A
Rock name 'Original entry: Manganese Chert'
Stratigraphy Not entered
Comments Chert in manganese beds
Locality details Rhiw manganese mines, Benallt
50k map sheet Pwllheli (134)

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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


E14421

Cross Polarized, E14421

Plane Polarized, E14421

Plane Polarized, E14421