Mechanisms and species of gold incorporation into crystals of cadmium, lead, and iron sulfides
V.L. Tauson, N.V. Smagunov, V.V. Akimov, V.A. Datkov
Institute of Geochemistry, Siberian Branch of the RAS, 1a ul. Favorskogo, Irkutsk, 664033, Russia
Keywords: Gold; species; real crystals; galena; greenockite; pyrrhotite; pyrite; endocrypty; defects
Pages: 594-601
Abstract
The mechanisms and species of gold incorporation into crystals of simple sulfides are described. The concept of endocrypty in its modern treatment and the corresponding technique of experimental study were used. The technique is based on the principle of phase composition correlation and variation of parameters specifying the concentrations of active crystal defects. Gold species are determined with the method of statistical samples of analytical data for single crystals (SSADSC). The highest gold incorporation limits have been established for PbS and CdS under high sulfur fugacity (2.4 · 10-2 and 7 · 10-3 wt.%, respectively) at 500
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