Edilson Tantalum Pegmatite
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Copyright 2001 - 2015 by    Wolfgang Hampel
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This highly differentiated pegmatite body contains several quartz nuclei. During the last tantalum boom, the mine produced mainly tantalite, now it produces mainly kaolinite.
Host rocks are quartzites of the Equador Formation
A lepidolite rich zone rich in tantalite (Ta >> Nb).
Close-up view of tailings with quartz, white mica and lepidolite.