BGS mineralogy and petrology collection record

Sample number E13379; COLLNO13;
Sample Donor Matley, C.A
Rock name 'Original entry: Chloritic Chert'
Stratigraphy Not entered
Comments ? Gwana beds. Green chert with spilite with minute step faulting associated with spilite breccia.
Locality details Graig Mynydd Anelog.
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


E13379

Cross Polarized, E13379

Plane Polarized, E13379

Plane Polarized, E13379