BGS mineralogy and petrology collection record

Sample number E39470; COLLNO3;
Sample Donor Beer,K.E.
Rock name 'Original entry: Altered Ultrabasic'
Stratigraphy Not entered
Comments Not entered
Locality details BH. No. 17, 450 Yds. ESE of Polyphant Quarry.
50k map sheet Tavistock (337)

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Map reference SX 2636 8245
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


E39470

Cross Polarized, E39470

Plane Polarized, E39470

Plane Polarized, E39470