Electron microprobe analysis of Pb-Cu(Fe)-Sb-Bi sulfosalts from Bazoges and Les Chalanches (France), and Pedra Luz (Portugal), give new data about (Bi, Sb) solid-solution and incorporation of the minor elements Cu, Fe or Ag in jaskolskiite, and in izoklakeite-giessenite and kobellite-tintinaite series. Jaskolskiite from Pedra Luz has high Sb contents (from 17.9 to 20.7 wt.%), leading to the extended general formula: Cu
x
Pb
2+x
(Sb
1–y
Bi
y
)
2–x
S
5, with 0.10
(Cu2 - x Fex )[Pb26 - 2z + x (Ag,Cu)z (Sb1 - y Biy )20 + z - x ]å = 46 S57, with:0 \leqslant x \leqslant 1; 0.44 \leqslant y \leqslant 0.85;0 \leqslant z \leqslant 2.2 \begin{gathered} (Cu_{2 - x} Fe_x )[Pb_{26 - 2z + x} (Ag,Cu)_z (Sb_{1 - y} Bi_y )_{20 + z - x} ]_{\sum = 46} S_{57,} \hfill \\ with:0 \leqslant x \leqslant 1; 0.44 \leqslant y \leqslant 0.85;0 \leqslant z \leqslant 2.2 \hfill \\ \end{gathered}
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- and, for the tintinaite-kobellite series:
(Cu2 - x Fex )[Pb10 - 2z + x (Ag,Cu)z (Sb1 - y Biy )16 + z - x ]å = 26 S35, with:0 \leqslant x \leqslant 1; 0 \leqslant y \leqslant 0.67;0 \leqslant z \leqslant 0.54 \begin{gathered} (Cu_{2 - x} Fe_x )[Pb_{10 - 2z + x} (Ag,Cu)_z (Sb_{1 - y} Bi_y )_{16 + z - x} ]_{\sum = 26} S_{35,} \hfill \\ with:0 \leqslant x \leqslant 1; 0 \leqslant y \leqslant 0.67;0 \leqslant z \leqslant 0.54 \hfill \\ \end{gathered}
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