...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...

... in adjacent chains. The corner-sharing Fe 3+ tetrahedra connect the chains to build double-chain ribbons. The charge balance, altered by the insertion of sulphide anions, is restored by the substitution of Fe 2+ cations in the octahedral chains by Fe 3+ cations. Apuanite is tetragonal, space group P 4 2 / mbc...

...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...

...Silmarilly Bahfenne; Llew Rintoul; Ray L. Frost Abstract We present the first single-crystal Raman spectra of the mineral schafarzikite FeSb 2 O 4 from the Pernek locality of the Slovak Republic. In addition, Raman spectra of the natural mineral apuanite Fe 2+ Fe 4 3+ Sb 4 O 12 S, originating from...

... 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...

... derived from those data is 2.47, and the compatibility index is 0.003 (superior). The data for the other six antimonites whose descriptions have been published can be summarized here: apuanite: no indices of refraction given, cetineite: only indices of refraction > 1.74 stated, schafarzikite: ω and ε...

... 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...

... 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...

...”. 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...