The crystal structure of pyrostilpnite from the Plaka mine, Lavrion Mining District, Greece, was refined in the space group P21/c to a final R1 index of 0.0283 on the basis of 2047 reflections with Fo > 4σ(Fo) and 65 refined parameters. Unit-cell parameters of the crystal examined are a = 6.8629(6), b = 15.8800(14), c = 6.2711(5) Å, β = 117.087(2)°, V = 608.48(9) Å3 and Z = 4. Chemical data agree with the stoichiometric formula Ag3SbS3. The crystal structure reported previously was confirmed, although a higher precision of refinement was achieved. It can be described as formed by {010} slabs running along c and connected along a through relatively longer Ag–S bonds. The analysis of the atomic displacement parameters together with a refinement with higher order tensors in the expression of the structure factors revealed no hint for pyrostilpnite as an ionic conductor. A historical background of the ‘ruby silvers’ is also reported.

来自希腊Lavrion矿区Plaka矿的焦绿锰铁矿的晶体结构在空间群P 2 1 / c中被精炼，基于2047次反射（F o >4σ（F o），最终的R 1指数为0.0283。和65个优化参数。检查晶体的晶胞参数为一个= 6.8629（6），b = 15.8800（14），C ^ = 6.2711（5）β= 117.087（2）°，V = 608.48（9）埃3和ž = 4.化学数据符合化学计量公式Ag 3 SbS 3。尽管实现了更高的精制精度，但先前报道的晶体结构得到了确认。它可以描述为由{010}平板沿c延伸并通过相对较长的Ag-S键沿a连接而成。对原子位移参数的分析以及在结构因子表达中采用高阶张量的细化，都没有暗示以锰铁矿为离子导体。还报道了“红宝石银”的历史背景。