Castle an Dinas

Castle an Dinas. Castle an Dinas Wolfram Mine. The lode, exposed in the back of the 5th Level, north of New Shaft. The edge of the lode runs down the centre of the picture. To the left is the lode consisting of white quartz, with vughs here and there and wolfram crystals (showing black) near the margin. To the right is tourmalinized killas wall rock. Photo P208056. Reproduced with the permission of the British Geological Survey ©NERC. All rights Reserved.

This photograph is by carnkie and was uploaded December 9^th 2009. © carnkie please do not copy or distribute without prior express permission.

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