BGS mineralogy and petrology collection record

Sample number E72371; COLLNOCT1071;
Sample Donor Johnson,E.W.
Rock name Andesite. 'Original entry: Andesite'
Stratigraphy Caradoc. Borrowdale Volcanic Group.
Comments porphyritic andesite lava; turbid groundmass with phenocrysts
Locality details not recorded
50k map sheet Cumbria or Ambleside (38)

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Map reference SD 2175 9435
Year collected 1986 
Bore name Not applicable
Confidentiality No restrictions