BGS mineralogy and petrology collection record

Sample number E21846
Sample Donor Shannon,W.G.
Rock name Porphyry. 'Original entry: Felsite'
Stratigraphy Not entered
Comments Orthophyre. No rock. Pebbles from Permian breccias.
Locality details Labrador.
50k map sheet Newton Abbot (339)

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Map reference SX 935 708
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


E21846

Cross Polarized, E21846

Plane Polarized, E21846

Plane Polarized, E21846