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Tetrahedrite-(Hg), a new 'old' member of the tetrahedrite group

机译：四德 - （Hg），一个新的“旧”的四德群体成员

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Tetrahedrite-(Hg), Cu-6(Cu4Hg2)Sb4S13, has been approved as a new mineral species using samples from Buca della Vena mine (hereafter BdV), Italy, Jedova hora (Jh), Czech Republic and Roznava (R), Slovakia. It occurs as anhedral grains or as tetrahedral crystals, black in colour, with metallic lustre. At BdV it is associated with cinnabar and chalcostibite in dolomite veins. At Jh, tetrahedrite-(Hg) is associated with baryte and chalcopyrite in quartz-siderite-dolomite veins; at R it is associated with quartz in siderite-quartz veins. Tetrahedrite-(Hg) is isotropic, greyish-white in colour, with creamy tints. Minimum and maximum reflectance data for Commission on Ore Mineralogy wavelengths in air (BdV sample), R in %) are 32.5 at 420 nm; 32.9 at 546 nm; 33.2 at 589 nm; and 30.9 at 650 nm. Chemical formulae of the samples studied, recalculated on the basis of 4 (As + Sb + Bi) atoms per formula unit, are: (Cu9.44Ag0.07)(Sigma 9.51)(Hg1.64Zn0.36Fe0.06)(Sigma 2.06)Sb4(S12.69Se0.01)(Sigma 12.70) (BdV), Cu-9.69(Hg1.75Fe0.25Zn0.06)(Sigma 2.06)(Sb3.94As0.06)S-12.87 (Jh) and (Cu9.76Ag0.04) (Sigma 9.80)(Hg1.83Fe0.15Zn0.10)(Sigma 2.08)(Sb3.17As0.58Bi0.25)S-13.01 (R). Tetrahedrite-(Hg) is cubic, I (4) over bar 3m, with a = 10.5057(8) angstrom, V = 1159.5(3) angstrom(3) and Z = 2 (BdV). Unit-cell parameters for the other two samples are a = 10.4939(1) angstrom and V = 1155.61(5) angstrom(3) (Jh) and a = 10.4725(1) angstrom and V = 1148.55(6) angstrom(3) (R). The crystal structure of tetrahedrite-(Hg) has been refined by single-crystal X-ray diffraction data to a final R-1 = 0.019 on the basis of 335 reflections with F-o > 4 sigma(F-o) and 20 refined parameters. Tetrahedrite-(Hg) is isotypic with other members of the tetrahedrite group. Mercury is hosted at the tetrahedrally coordinated M(1) site, along with minor Zn and Fe. The occurrence of Hg at this position agrees both with the relatively large M(1)-S(1) bond distance (2.393 angstrom) and the refined site scattering. Previous occurrences of Hg-rich tetrahedrite and tetrahedrite-(Hg) are reviewed, and its relations with other Hg sulfosalts are discussed.
机译：Tetrahedrite-（Hg），Cu-6（Cu4Hg2）Sb4s13已被批准为使用来自Buca della vena矿山（下文BDV），意大利，Jedova Hora（JH），捷克共和国和Roznava（R）的样品的新型矿物质，斯洛伐克。它发生作为anhedral谷物或四面体晶体，黑色的黑色，带金属光泽。在BDV，它与Cinnabar和白云石静脉中的Chalostibite相关联。在jh，四氢铅（hg）与石英 - 锌沸石 - 白云岩静脉中的缩晶和黄铜矿相关;在r，它与石英静脉中的石英相关联。四氢铅 - （Hg）是各向同性的，灰白色的颜色，乳脂状。在空气（BDV样品）中的矿石矿物学波长（BDV样品）中的最小反射数据，r in％）为32.5，在420nm处; 32.9 546 nm; 33.2在589纳米;和30.9达650纳米。研究的样品的化学式，根据每配方单元的4（AS + SB + BI）原子重新计算，包括：（Cu9.44aag0.07）（Sigma 9.51）（Hg1.64zn0.36Fe0.06）（Sigma 2.06）（Sigma 2.06） ）SB4（S12.69Se0.01）（Sigma 12.70）（BDV），Cu-9.69（Hg1.75Fe0.25Zn0.06）（Sigma 2.06）（Sb3.94as0.06）S-12.87（JH）和（CU9。 76AG0.04）（SIGMA 9.80）（HG1.83FE0.15ZN0.10）（SIGMA 2.08）（SB3.17AS0.58BI0.25）S-13.01（R）。四氢化物 - （Hg）是立方体，I（4）上方3m，A = 10.5057（8）埃，V = 1159.5（3）埃（3）和Z = 2（BDV）。其他两个样品的单元 - 细胞参数是= 10.4939（1）埃和v = 1155.61（5）埃（3）（jh）和a = 10.4725（1）埃，V = 1148.55（6）埃（3） （r）。四氢化物 - （Hg）的晶体结构通过单晶X射线衍射数据通过单晶X射线衍射数据改进至最终R-1 = 0.019，基于335个与F-O> 4 sigma（F-O）和20个精制参数的反射。 Tetrahedrite-（Hg）是与四氢铅基团的其他成员同种型。汞在四面体协调的M（1）位点，以及次要Zn和Fe。该位置的Hg的发生与相对大的M（1） - （1）键距离（2.393埃）和精制部位散射同意。审查了以前的富含Hg的四德里特和四氢铅（HG），并讨论了与其他HG硫磺的关系。

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