BGS mineralogy and petrology collection record

Sample number E21905
Sample Donor Shannon,W.G.
Rock name 'Original entry: Sanidine Biotite Porphyry'
Stratigraphy Not entered
Comments Orthophyre. No rock.
Locality details Watcombe.
50k map sheet Newton Abbot (339)

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Map reference SX 921 673
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


E21905

Cross Polarized, E21905

Plane Polarized, E21905

Plane Polarized, E21905