BGS mineralogy and petrology collection record

Sample number E13278
Sample Donor Matley, C.A
Rock name 'Original entry: Chert'
Stratigraphy Not entered
Comments Banded chert. 4 ft band. ? Adinole
Locality details West slope, Mynydd Rhiw
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


E13278

Cross Polarized, E13278

Plane Polarized, E13278

Plane Polarized, E13278