...M. Mellini; S. Merlino; P. Orlandi Abstract Two new minerals, versiliaite and apuanite, were found in the Buca della Vena mine on the Apuan Alps (Italy). The minerals generally occur as massive black aggregates in veinlets within layers of dolomite. Versiliaite, ( Fe 4.65 2 + Zn 1.04 Fe 4.65 2 + Fe...

...). Versiliaite is orthorhombic, space group Pbam, a = 8.492, b = 8.326, c = 11.938A. Its crystal structure is related to that of schafarzikite in the following manner: every fourth Sb 3+ ion in the ψ -tetrahedral chains is substituted by a Fe 3+ ion and a sulphide anion is added between two Fe 3+ cations...

...Marcello Mellini; Marc Amouric; Alain Baronnet; Genevieve Mercuriot Abstract Versiliaite (Fe 12 Sb 12 O 32 S 2 , Pbam, a = 8.492, b = 8.326, c = 11.938Å) and apuanite (Fe 20 Sb 16 O 48 S 4 , P 4 2 / mbc, a = 8.372, c = 17.974Å) are closely related to schafarzikite (Fe 4 Sb 8 O 16 , P 4 2 / mbc...

... oxy-chloro-sulfide sulfosalt lead antimony Tuscany Italy Pellouxite is the seventh mineralogical species for which Buca della Vena mine in the Apuan Alps (Tuscany, Italy) is the type locality, after apuanite, versiliaite, stibivanite-2O, dessauite, scainiite and pillaite ( Mellini et al...

... associated with and closely related to other antimonites such as versiliaite Fe 2 2+ Fe 4 3+ Sb 6 O 16 S and apuanite Fe 2+ Fe 4 3+ Sb 4 O 12 S ( Mellini et al. 1979 ; Mellini and Merlino 1979 ). Schafarzikite trippkeite apuanite single-crystal Raman spectroscopy antimonite The unit cell...

... > 1.74, stibivanite: only α > 1.87 and γ <1.87 given, thorikosite: no optical data given, and versiliaite: no indices of refraction given. It is evident that the data, especially the indices of refraction, are almost totally lacking. The six antimonites without optical data (apuanite, cetineite...

... domains resembling versiliaite or apuanite ( Mellini et al. , 1981 ) in our samples is unlikely, because the Fe occupancy is only 0.974 apfu , and S concentration is not greater than 0.004 apfu . The first published analysis of schafarzikite from Pernek ( Hueber, 1932 ) is very likely incorrect...

... is not problematic. The same combination of species is found in the minerals apuanite, (Fe 2+ Fe 4 3+ Sb 4 3+ O 12 S) and versiliaite (Fe 2+ Fe 6 3+ Sb 6 3+ O 16 S), which are polysomatic intermediates between schafarzikite (Fe 2 2+ Sb 4 3+ O 8 □) and a hypothetical end-member Fe 2 3+ (Fe 2 3+ Sb 2 3...

... of microcrystalline hematite, magnetite, pyrite, and barite, and it represents the type locality for many other mineralogical species such as apuanite, versiliaite, dessauite, scainiite, pillaite, pellouxite, and rouxelite ( Orlandi & Dini 2004 ). At this locality, tiny black prismatic crystal of allanite-(Ce...

... apuanite and versiliaite ( Mellini et al . 1979 ), the other barite – pyrite – iron oxides deposits of Apuan Alps have so far been neglected by mineralogists. Recently, new data were acquired on the mineralogy of the Fornovolasco mine ( Biagioni et al . 2008 , 2011 ) and the Monte Arsiccio mine (see...

...”. Apuanite and versiliaite are two Sb-containing oxy-sulfides, derived from the oxide schafarzikite ( Mellini & Merlino, 1979 ). In apuanite, ideally Fe 2+ Fe 4 3+ Sb 4 3+ O 12 S, the Sb is bound only to O; thus the mineral cannot be considered to be an oxy-sulfosalt. In versiliaite, Fe 2 2+ (Fe 3...

... the end of the 1970s. Among them, twelve have this mine as their type locality: allanite-(La), apuanite, bohuslavite, dessauite-(Y), mapiquiroite, marrucciite, oxycalcioroméite, pellouxite, pillaite, rouxelite, scainiite and versiliaite. Tetrahedrite-(Hg) is the thirteenth new mineral species found...