Tantalum pegmatites
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Copyright 2001 - 2015 by    Wolfgang Hampel
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The area around highway 427 is known for numerous columbite (Nb > Ta) bearing pegmatitic veins. The veins are 2 to 4 m wide and were mined down to depths of 15 - 20 m.
Host rocks are metasedimentary rocks of Proterozoic age. Drainages in the vicinity carry alluvial gold of unclear primary origin.