BGS mineralogy and petrology collection record

Sample number S30125; S30125/A;
Sample Donor Phemister,J.
Rock name 'Original entry: Gabbro And Essexite'
Stratigraphy Not entered
Comments Gabbro and essexite, variable rock of orthoclase-mantled acid labradorite, prople augite, orthoclase, alcite, ilmenite, apatite (A) with biotite and mica-like serpentine; analcite, alkali fldspar, carbonation of olivine, and dissemination of serpenti
Locality details Scaw Knowe 830 yards W 30 deg N of Ancrum House
50k map sheet Jedburgh (17)

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Map reference NT 623 255
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


S30125

Cross Polarized, S30125

Plane Polarized, S30125

Plane Polarized, S30125


S30125/A

Cross Polarized, S30125/A

Plane Polarized, S30125/A

Plane Polarized, S30125/A