BGS mineralogy and petrology collection record

Sample number E7228; COLLNO255;
Sample Donor Thomas, Dr.
Rock name Trachytic-Rock. 'Original entry: Keratophyre'
Stratigraphy Not entered
Comments Not entered
Locality details 7. Quarry, E. end of Pointz Castle.
50k map sheet St. Davids (209)

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Map reference
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, E7228

Plane Polarized, E7228

Plane Polarized, E7228