MS element mapping of pyrite show that tellurium commonly occurs along the grain boundaries of P y3, which demonstrate that the precipitation of Te is closely related to crystallization of P y3.
Tellurides are widespread in Py3 and Py4, consisting mainly of native tellurium, tetradymite, tsumoite, hessite, and petzite. Especially, tetradymite commonly coexists with native gold. This study highlights the role of Te–Bi–S melt as an important gold scavenger in As-deficient ore-forming fluids. 1. Introduction.
Three pyrite generations and seven species of tellurides were identified in the Yongxin Te-Au deposit. Te-Au mineralization is closely related to the Py3. Fluid mixing and …
Magnetite was formed and oxidized sulfur to sulfate ions, subsequently resulting in the formation of barite. This sequence indicates that tellurides were coeval with native gold, pyrite, magnetite, and barite. The mixing of meteoric water may have also contributed to an increase in the oxygen fugacity of the original fluids.
Usually, gold telluride ores appear to be refractory as they are always as-sociate with pyrite and other sulfides. This would 'lock' the gold and give rise to elevated cyanide consumption. For …
Gold is found in three different forms in the Emperor gold deposit: as "invisible" or submicrometer-size inclusions of gold in arsenian pyrite, as visible native gold and/or electrum, and as tellurides (calaverite, krennerite, sylvanite, and petzite).
Gold is found in three different forms in the Emperor gold deposit: as "invisible" or submicrometer-size inclusions of gold in arsenian pyrite, as visible native gold and/or electrum, …
MS element mapping of pyrite show that tellurium commonly occurs along the grain boundaries of P y3, which demonstrate that the precipitation of Te is closely related to crystallization of P y3.
We have established/refined three crucial mechanisms for Te incorporation into pyrite: (1) Tellurium in solid-solution, that significantly exceeds previously proposed solubility limits. (2) Nano-telluride inclusions formed by intra-grain …
In gold‐polymetallic sulfide stage, Au formed within pyrite and As‐bearing pyrite in the form of invisible gold, whereas in the gold‐telluride stage, Au occurs as visible gold, such …
Pyrite, the most abundant sulfide on Earth and a common component of gold deposits, can be a significant host for refractory gold. This is the first documentation of pore-attached, composite Au-telluride nanoparticles in "arsenic-free" pyrite.
Magnetite was formed and oxidized sulfur to sulfate ions, subsequently resulting in the formation of barite. This sequence indicates that tellurides were coeval with native gold, …
We have established/refined three crucial mechanisms for Te incorporation into pyrite: (1) Tellurium in solid-solution, that significantly exceeds previously proposed solubility …
Tellurides are widespread in Py3 and Py4, consisting mainly of native tellurium, tetradymite, tsumoite, hessite, and petzite. Especially, tetradymite commonly coexists with native gold. This study highlights the role …
Pyrite, the most abundant sulfide on Earth and a common component of gold deposits, can be a significant host for refractory gold. This is the first documentation of pore …
Three pyrite generations of different trace element contents identified in the Yongxin gold deposit. Te-Au mineralization is closely related to the Py3. Te-Bi-rich melts, as gold scavenger, play a critical role in governing gold distribution patterns and …
Usually, gold telluride ores appear to be refractory as they are always as-sociate with pyrite and other sulfides. This would 'lock' the gold and give rise to elevated cyanide consumption. For this reason, oxidative pre-treatments are generally conducted to improve gold recoveries. Table 1.
In gold‐polymetallic sulfide stage, Au formed within pyrite and As‐bearing pyrite in the form of invisible gold, whereas in the gold‐telluride stage, Au occurs as visible gold, such as native gold, electrum, calaverite, and petzite.
Three pyrite generations and seven species of tellurides were identified in the Yongxin Te-Au deposit. Te-Au mineralization is closely related to the Py3. Fluid mixing and fluid-rock interaction triggered the precipitation of Te-Au in the Yongxin Te-Au deposit.