gold and silver bearing telluride ores

Ore minerals in the telluride-bearing gold-silver ores of ...

Te-Se-bearing gold-silver ores from Salida in Sumatra, Indonesia, show carbonate and sulfidic diffusion bands in quartz incrustations. The sulfidic diffusion bands show a fine diffusion zoning with: 1. an earliest or inner zone with concentrations of Zn, Cu, Fe, S sphalerite, chalcopyrite, pyrite ; 2. an intermediate zone with concentrations of Pb, Au, Ag, S, Te, Se galena and Au-Ag ...

Ore–microscopy and Geochemistry of Gold–Silver Telluride ...

Tellurium–bearing gold, silver, and base metal assemblages characterize the epithermal mineralization in south-western Hokkaido, Japan. The telluride deposits in this district consist of quartz–filled fracture systems of Late Miocene to Pliocene age. Most of the telluride mineralization in southwestern Hokkaido consists of vein sys-

Process Mineralogy of Gold: Gold from Telluride-Bearing Ores

studies of gold in gold-silver telluride ... GOLD-BEARING MINERALS In hypogene ores, gold occurs primar-ily in the form of native gold or as an alloy with Ag electrum is the informal

Mineral Transformations in Gold– Silver Tellurides in the ...

Gold– silver telluride deposits normally contain a dozen or more different telluride and selenide minerals and present complex ore textures. An example is seen in the ores of the recently discovered Sandaowanzi gold deposit, where sylvanite is the most abundant gold-bearing mineral and together with petzite and krennerite accounts for >60% ...

SYLVANITE Silver Gold Telluride

Sylvanite is one of the few minerals that is an ore of gold, besides native gold itself. It is one of the most common gold bearing minerals. The element gold is typically either found as native gold in its elemental state , as an alloy with other metals such as silver and copper and as trace amounts in a few minerals.

Processing technologies for gold-telluride ores

The presence of gold telluride minerals may render an ore refractory, the extent of this depends on the telluride mineral present and the mineralogical association 3 . Gold, silver, and gold/silver-telluride minerals in ores dissolve more slowly than native gold in cyanide solutions, which results in less efficient gold extraction 4 .

Telluride - an overview ScienceDirect Topics

Gold telluride ores, treated commercially in various regions in the world, most notably Kalgoorlie, Western Australia; Vatukoula, Fiji; Cripple Creek, Colorado, and Kirkland Lake, Ontario, exhibit slow leaching kinetics. There are many telluride mineral species and the most common gold bearing varieties include calaverite, krennerite, sylvanite ...

Treatment of gold-telluride ores - ScienceDirect

Gold-telluride ores were not immediately recognized for their gold-bearing capacity. Visually, these ores did not contain the same dull brassy yellow typical of free gold. It was with some surprise that the returns from treatment plants greatly exceeded the miners expectations.

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