BGS mineralogy and petrology collection record

Sample number E5436
Sample Donor Usher,W.A.E.
Rock name Porphyry. 'Original entry: Granite Porphyry'
Stratigraphy Not entered
Comments Not entered
Locality details Near Donore
50k map sheet Ivybridge (349)

View images in GeoScenic related to 'Ivybridge'

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Map reference SX 620 584
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


E5436

Cross Polarized, E5436

Plane Polarized, E5436

Plane Polarized, E5436