The theoretical and experimental substantiation of the behavior of ferrous sphalerite in magnetic separation is given in terms of the Gorevka deposit ore. In sphalerite of this deposit, the content of isomorphous iron ranges as 4–9%. The Móssbauer spectroscopy showed the singlet and two doublet lines of iron, demonstrating separate arrays of iron atoms in sphalerite lattice, with formation of Fe-Fe pairs and clusters of three or more iron atoms. It is found that distribution of iron in sphalerite into three forms coincides for magnetic and nonmagnetic products of zinc concentrate separation. It is determined that magnetic separation undivides sphalerite grains by the isomorphous iron content but is governed by the genetic features of the deposit formation—association of sphalerite with magnetic minerals (pyrrhotine and siderite) and the absence of such associations in galena.

中文翻译：

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Gorevka矿床铅锌矿中闪锌矿的结构特征及可加工性

以 Gorevka 矿床为例，给出了亚铁闪锌矿在磁选中的行为的理论和实验证明。该矿床的闪锌矿中，同晶铁含量为4%～9%。穆斯堡尔光谱显示了铁的单线和两条双线，表明闪锌矿晶格中的铁原子排列分开，形成了 Fe-Fe 对和三个或更多铁原子的簇。发现锌精矿分离的磁性和非磁性产物铁在闪锌矿中的三种形态分布是一致的。