BGS mineralogy and petrology collection record

Sample number E2962
Sample Donor Usher,W.A.E.
Rock name 'Original entry: Altered Spilite With Tourmaline'
Stratigraphy Not entered
Comments Cordierite, 2 micas and quartz.
Locality details Near Holewell Farm, to N. of Walkhampton.
50k map sheet Dartmoor Forest (338)

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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


E2962

Cross Polarized, E2962

Plane Polarized, E2962

Plane Polarized, E2962