BGS mineralogy and petrology collection record

Sample number E23152; COLLNOBN15;
Sample Donor Bisson,G.
Rock name Metabasaltic-Rock. 'Original entry: Epidiorite'
Stratigraphy Not entered
Comments From dump at east end of tunnel. Mineralised.
Locality details Prewley Tunnel, 3.44 miles SW. of Okehampton.
50k map sheet Okehampton (324)

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Map reference SX 553 907
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


E23152

Cross Polarized, E23152

Plane Polarized, E23152

Plane Polarized, E23152