BGS mineralogy and petrology collection record

Sample number E21843
Sample Donor Shannon,W.G.
Rock name Felsite. 'Original entry: Quartz Porphyry'
Stratigraphy Not entered
Comments Quartz basalt. 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


E21843

Cross Polarized, E21843

Plane Polarized, E21843

Plane Polarized, E21843