BGS mineralogy and petrology collection record

Sample number E13729; COLLNO1183;
Sample Donor Mcmahan
Rock name 'Original entry: Elvan (Shillamill)'
Stratigraphy Not entered
Comments Some from the quarry below.
Locality details ENGLAND. Tavistock (337)
50k map sheet Tavistock (337)

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Map reference
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


E13729

Cross Polarized, E13729

Plane Polarized, E13729

Plane Polarized, E13729