BGS mineralogy and petrology collection record

Sample number E26383; COLLNOEE392;
Sample Donor Elliot,R.W.
Rock name Not entered
Stratigraphy Not entered
Comments Typical coarse "hornblende porphyrite" from centre of sill.
Locality details Middle Mill Quarries, Southern quarry, 200 Yds. WSW. of Chapel at Middle Mill. Centre of working face.
50k map sheet St. Davids (209)

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Map reference SM 803 260
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


E26383

Cross Polarized, E26383

Plane Polarized, E26383

Plane Polarized, E26383