BGS mineralogy and petrology collection record

Sample number E137
Sample Donor Ward, J.C.
Rock name Porphyry. 'Original entry: Felsite'
Stratigraphy Not entered
Comments Dyke. Acid Porphyrite
Locality details Bow Fell Gully
50k map sheet Cumbria or Ambleside (38)

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Map reference NY 2460 0670
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


E137

Cross Polarized, E137

Plane Polarized, E137

Plane Polarized, E137