BGS mineralogy and petrology collection record

Sample number E23146; COLLNOBN9;
Sample Donor Bisson,G.
Rock name 'Original entry: Diopside Sphene'
Stratigraphy Not entered
Comments 3" stringer in igneous rock.
Locality details Prewley Tunnel, 3.44 miles SW. of Okehampton.
50k map sheet Okehampton (324)

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Map reference SX 552 907
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


E23146

Cross Polarized, E23146

Plane Polarized, E23146

Plane Polarized, E23146