BGS mineralogy and petrology collection record

Sample number E57649; COLLNORC1474;
Sample Donor Cave,R.
Rock name Not entered
Stratigraphy Not entered
Comments Not entered
Locality details Trewallter BH, 1090 m 280 deg from Church of the Holy Martyrs, Mathry
50k map sheet St. Davids (209)

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Map reference SM 8952 2236
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


E57649

Cross Polarized, E57649

Plane Polarized, E57649

Plane Polarized, E57649