Heterogeneous composition of gold-sulfide ores from the Maiskoe deposit, northeast Russia
The geological-technological mapping of gold-sulfide ores from the Maiskoe deposit (northeast Russia) has revealed significant heterogeneities of important technological characteristics of mineral composition: total Au and Sb contents, amount of major Au-bearing minerals (pyrite and arsenopyrite), and Au/As ratio. The proportion between Au content of ore and the presence of Au-bearing pyrite and arsenopyrite, which is reflected in coefficient of Au content, is responsible for the quality of flotation concentrate.
Figures 7. Tables 7. References 5.
Key words: invisible gold, disseminated gold-sulfide ores, pyrite, arsenopyrite, coefficient of gold content, gold-bearing sulfides, quality of gold flotation concentrate
MINERALOGY № 2 2019