BGS mineralogy and petrology collection record

Sample number E273
Sample Donor Ward, J.C.
Rock name Porphyry. 'Original entry: Felsite'
Stratigraphy Not entered
Comments Dyke. Felsite
Locality details North end of Yewbarrow
50k map sheet Cumbria or Ambleside (38)

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Map reference NY 176 092
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


E273

Cross Polarized, E273

Plane Polarized, E273

Plane Polarized, E273