BGS mineralogy and petrology collection record

Sample number S29751
Sample Donor Phemister,J.
Rock name 'Original entry: Trachyte'
Stratigraphy Not entered
Comments Trachyte, nepheline replaced by calcite
Locality details 170 yards E of triangulation point at 1744 feet on Skelfhill Pen
50k map sheet Jedburgh (17)

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Map reference NT 443 031
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


S29751

Cross Polarized, S29751

Plane Polarized, S29751

Plane Polarized, S29751