BGS mineralogy and petrology collection record

Sample number E7199; COLLNO21;
Sample Donor Thomas,H.H.
Rock name Trachytic-Rock. 'Original entry: Keratophyre'
Stratigraphy Not entered
Comments Enquiry by A.H. Thomas
Locality details Mountain Water, Dinas. Haycastle
50k map sheet St. Davids (209)

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Map reference SM 89 25
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


Cross Polarized, E7199

Plane Polarized, E7199

Plane Polarized, E7199