BGS mineralogy and petrology collection record

Sample number E21909
Sample Donor Shannon,W.G.
Rock name 'Original entry: Quartz Orthoclase Porphyry, Tourmalinized'
Stratigraphy Not entered
Comments Tourmalinized quartz porphyry. No rock. Pebbles from Permian breccia.
Locality details Maidencombe.
50k map sheet Newton Abbot (339)

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Map reference SX 926 684
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


E21909

Cross Polarized, E21909

Plane Polarized, E21909

Plane Polarized, E21909