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Phosphofibrite as concentric radials from the Wismut prospect near Röhrsdorf, Chemnitz, Saxony. Second find in Germany after Clara mine/Black Forest. (Author: Andreas Gerstenberg)

Phosphofibrite as concentric radials from the Wismut prospect near Röhrsdorf, Chemnitz, Saxony. Second find in Germany after Clara mine/Black Forest. (Author: Andreas Gerstenberg)

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