BGS mineralogy and petrology collection record

Sample number E25700; COLLNOEE324;
Sample Donor Elliot,R.W.
Rock name Not entered
Stratigraphy Not entered
Comments Upper perlite in the lower rhyolite group.
Locality details NW. side of Porth Maen-Melyn crags above cliff. 1060 Yds. at 29.5 deg. N. of W. of BM. 678.3 at top of Garn Fawr.
50k map sheet St. Davids (209)

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Map reference SM 887 393
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


E25700

Cross Polarized, E25700

Plane Polarized, E25700

Plane Polarized, E25700