South Crofty Mine, Robinson's Section, 380 fm. level, No. 4 lode west. Cassiterite/tourmaline filled fractures forming No. 4 lode seen in the roof of drive in megacrystic, coarse-grained, biotite-granite. Photo P213049. Reproduced with the permission of the British Geological Survey ©NERC. All rights Reserved.
This photograph is by carnkie and was uploaded December 9th 2009. © carnkie please do not copy or distribute without prior express permission.
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