BGS mineralogy and petrology collection record

Sample number S74045; COLLNONX1501;
Sample Donor Rock,N.M.S.
Rock name Trachyte.
Stratigraphy Not entered
Comments Dark porphyritic trachyte (sanidine-trachyte phase). Eildon Hills composite laccolith (?Lower Carboniferous)
Locality details Eildon North Hill
50k map sheet Kelso (25)

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Map reference NT 553 326
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, S74045

Plane Polarized, S74045

Plane Polarized, S74045