Castle an Dinas. Castle an Dinas Wolfram Mine. The 5th Level, north of New Shaft. The lode, 3 ft. wide, is seen in the roof of the level; occasional black wolfram crystals occur here and there. The sides of the level are of tourmalinized killas wall rock. Photo P208057. 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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