World-Wide Occurrence of Copper-Bearing Tourmalines
Fig. Par02 Geographic map shows the occurrence of copper-bearing tourmalines with commercial importance. The classical “Paraiba” tourmaline occurs in Brazil and new occurrences are found in Africa (Nigeria and Mozambique). The Brazilian occurrences are found in the state of Paraiba and Rio Grande do Norte (See Fig Par03).
Fig. Par03 Map shows the occurrence of copper-bearing tourmalines in Brazil in the State of Paraiba and Rio Grande do Norte. Although not all the tourmalines occur in the state of Paraiba, all copper-bearing tourmalines from Brazil are called “Paraiba” tourmalines, particularly if they possess so-called “Neon”-colors.
World-Wide Occurrence of Copper-Bearing Tourmalines
