BGS mineralogy and petrology collection record

Sample number E54080; COLLNOLA977;
Sample Donor Allen,P.M.
Rock name Not entered
Stratigraphy Not entered
Comments ? Chert
Locality details Llandeloy No. 8 BH, 170 m E of Treffynon Fm. House
50k map sheet St. Davids (209)

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Map reference SM 8514 2864
Year collected Not entered 
Bore name Llandeloy No. 8
Confidentiality No restrictions

Petrological thin sections

Links to high resolution images

Transition from XPL to PPL light


E54080

Cross Polarized, E54080

Plane Polarized, E54080

Plane Polarized, E54080