Geographic Origin Determination of Paraíba Tourmaline ...
Laurs et al. (2008) discussed the alluvial paleoplacer deposit origin of Mozambican materials, and Pezzotta (2018) proposed a residual alluvial origin from field observations. The lack of copper-rich tourmaline in pegmatites located in the upstream area of Mozambique's Paraíba tourmaline mines leaves the copper source unknown.
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