Paraiba or Not? Cu-bearing Tourmaline with a Distinct Fe Concentration
Author(s) : -
Date : 2022
Paraiba or Not? Cu-bearing Tourmaline with a Distinct Fe Concentration. Published in Journal of Gemmology, 2022, 38 (1), 20-22.
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Tag : Paraiba
SSEF fieldtrip to Paraiba, Brazil
Author(s) : -
Date : 2018
Presentation given by Alexander Klumb at 2018 Swiss Gemmological Society conference on an SSEF fieldtrip to the Paraiba region of Brazil.
Author(s) :H.A.O. Wang, S. Haensel, A. Klumb