BGS mineralogy and petrology collection record

Sample number E67687; COLLNORJM537;
Sample Donor Merriman,R.J.
Rock name Not entered
Stratigraphy Not entered
Comments Tuffaceous base of K - Bentonite
Locality details Porth y rhaw. West Solva
50k map sheet St. Davids (209)

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Map reference SM 7860 2424
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


E67687

Cross Polarized, E67687

Plane Polarized, E67687

Plane Polarized, E67687