...Frank N. Keutsch; Dan Topa; Emil Makovicky Hyršlite, Pb 8 As 10 Sb 6 S 32 , is a new member of the sartorite homologous series of Pb–(As,Sb) sulfosalts. It occurs in the Uchucchacua polymetallic deposit, Oyon district, Catajambo, Lima Department, Peru. Compositionally it lies between guettardite...

...Emil Makovicky; Dan Topa; Berthold Stoeger Crystal structures of heptasartorite and enneasartorite, two members of the sartorite anion-omission series were refined from the material from the Lengenbach deposit, Swiss Alps. Heptasartorite, Tl 7 Pb 22 (As 54 Sb) Σ55 S 108 , is monoclinic, space group...

... Bernardino Lotti (1847–1933) for his significant contribution to the knowledge of the geology of Tuscany and to the development of the Tuscan mining industry. It occurs as lead-grey acicular crystals up to 1 mm in length and few μm in width, with a metallic lustre, associated with Sb-rich sartorite. Under...

...Emil Makovicky; Dan Topa Abstract The members of the sartorite homologous series are complex sulfides M e 8 N − 16 − 2 X 2 + Me 3+ 16+X M e X + S 8N+8 where Me 2+ is Pb and Me 3+ is As and Sb, whereas Me + is Ag and/or Tl. This paper presents calculation formulae for the homologue order N...

...), 3.408(62)(2İ14), 2.972(66)(2İ16), 2.769(91)(222), 2.752(78)(4İ24) and 2.133(54)(402). Barikaite is the N = 4 member of the sartorite homologous series with a near-equal role of As and Sb, which have an ordered distribution pattern in the structure. It is a close homeotype of rathite and more distantly...

...Peter Berlepsch; Thomas Armbruster; Emil Makovicky; Dan Topa Abstract Single-crystal X-ray diffraction data, collected from a sartorite crystal from Lengenbach (Binntal, Valais, Switzerland), yielded a ninefold superstructure: space group P 2 1 / c; a = 37.71(2), b = 7.898(3), c = 20.106(8) Å, β...

...Allan Pring; Tim Williams; Ray Withers Abstract Sartorite, PbAs 2 S 4 , has been examined by transmission electron microscopy. The mineral has a monoclinic (but metrically orthorhombic) subcell with a = 19.62, b = 7.89, c = 4.19 Å, β = 90°, and space group P 2 1 / n . In addition to the strong...

... highly disordered specimens were found. The “disordered liveingite,” compositionally intermediate between dufrenoysite and liveingite, was found to be a disordered intergrowth of sartorite-like units and dufrenoysite-like units. The sartorite-like units are similar to those found in baumhauerite, whereas...

...Dan Topa; Frank N. Keutsch; Emil Makovicky; Uwe Kolitsch; Werner Paar Abstract Polloneite, ideally AgPb 46 As 26 Sb 23 S 120 , is a new N = 4 member of the sartorite homologous series. It occurs in a matrix of baryte from the Pizzone level of the Pollone baryte-pyrite-(Pb-Zn-Ag) deposit...