BGS mineralogy and petrology collection record

Sample number E31558; COLLNOGL4;
Sample Donor Lewis,G.D.E.
Rock name Not entered
Stratigraphy Not entered
Comments Mudstone with ironstone nodules and plant remains.
Locality details Nantgarw Colliery. Tonstein bed in No. 14 seam of No. 2 e x measure, 280 horizon.
50k map sheet Newport (249)

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Map reference ST 1347 8548
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


E31558

Cross Polarized, E31558

Plane Polarized, E31558

Plane Polarized, E31558