Abstract A mineral assemblage with nisbite NiSb 2 and breithauptite NiSb unique for a Mesozoic (Sn)–Pb–Zn vein deposit is found during mineralogical–geochemical study of deep horizons of the Yuzhnoe deposit. In addition to Ni antimonides, this assemblage includes nonstoichiometric Ag sulfoantimonide of variable composition (mineral X), pyrrhotite II, gudmundite II, Ag-bearing chalcopyrite, and stannite II. Nisbite and breithauptite form fine myrmekitic aggregates with pyrrhotite II at the boundary of various early ore minerals. In most cases, these aggregates are confined to the contact between pyrrhotite I and galena. The formation of ultramicroscopic myrmekitic aggregates in galena–sphalerite–pyrrhotite ores is related to ore recrystallization in a thermal fluid field of postore leucogranitic intrusion. New data significantly expand the temperature stability range of assemblages with Ni antimonides.

中文翻译：

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Ni-锑化物矿物组合：俄罗斯 Sikhote-Alin Yuzhnoe 矿床 Sn-Pb-Zn 矿石重结晶的产物

摘要 在对 Yuzhnoe 矿床深部进行矿物学地球化学研究时，发现了一个含有镍铁矿 NiSb 2 和重钙钛矿 NiSb 的矿物组合，这对中生代 (Sn)-Pb-Zn 脉矿床来说是独一无二的。除了镍锑化物之外，该组合还包括可变成分（矿物 X）、磁黄铁矿 II、古铜矿 II、含银黄铜矿和亚锡石 II 的非化学计量的 Ag 磺基锑化物。Nisbite 和breithauptite 在各种早期矿石矿物的边界处与磁黄铁矿II 形成精细的myrmekitic 聚集体。在大多数情况下，这些聚集体仅限于磁黄铁矿 I 和方铅矿之间的接触。方铅矿-闪锌矿-磁黄铁矿矿石中超显微粉晶石聚集体的形成与矿石后白花岗质侵入热流体场中的矿石重结晶有关。