BGS mineralogy and petrology collection record

Sample number E23145; COLLNOBN8;
Sample Donor Bisson,G.
Rock name 'Original entry: Albitized Basalt'
Stratigraphy Not entered
Comments Quartz stringer in igneous rocks. 180 Ft.Fr. East Portal.
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


E23145

Cross Polarized, E23145

Plane Polarized, E23145

Plane Polarized, E23145