BGS mineralogy and petrology collection record

Sample number E21918
Sample Donor Shannon,W.G.
Rock name 'Original entry: Quartz-Dolerite'
Stratigraphy Not entered
Comments Dolerite. No rock
Locality details Holbeam Farm
50k map sheet Newton Abbot (339)

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Map reference SX 822 712
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


E21918

Cross Polarized, E21918

Plane Polarized, E21918

Plane Polarized, E21918