Acta Cryst. (2007). E63, i190  [ doi:10.1107/S1600536806040980 ]

The mineral marrucciite: monoclinic Hg₃Pb₁₆Sb₁₈S₄₆

F. Laufek, J. Sejkora, K. Fejfarová, M. Dusek and D. Ozdín

Abstract: Recently, a new mineral species, monoclinic marrucciite, mercury lead antimony sulfide, Hg₃Pb₁₆Sb₁₈S₄₆ [Orlandi et al. (2007). Eur. J. Mineral. 19, 267-279], was discovered in the Fe-Ba deposit of Buca della Vena, Apuan Alps (Italy). In that report, the crystal structure was refined to R = 0.096. Our new discovery of crystals of this sulfosalt in the Gelnica ore district, situated in the Spissko-gemerské rudohorie mountain range, Slovak Republic, has now allowed a substantially more precise determination of the crystal structure (R = 0.024). The monoclinic unit cell contains 19 independent cation positions (including two mixed Sb^III/Pb^II positions) and 23 independent S positions.

Online 24 October 2007

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