BGS mineralogy and petrology collection record

Sample number E29854; COLLNOKY646;
Sample Donor Kellaway,G.A.
Rock name Not entered
Stratigraphy Silurian. Lower Trap.
Comments Silurian rocks. Tortworth Inlier. Gypsum nodules in lower of Trap Band
Locality details Drainage Trench. 200 to 260 yd ENE of Charfield Station.
50k map sheet Malmesbury (251)

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Map reference ST 726 923
Year collected
Bore name Not applicable
Confidentiality No restrictions

Petrological thin sections

Links to high resolution images

Transition from XPL to PPL light


E29854

Cross Polarized, E29854

Plane Polarized, E29854

Plane Polarized, E29854