...Dan Topa; Uwe Kolitsch; Emil Makovicky; Chris Stanley Écrinsite, ideally AgTl 3 Pb 4 As 11 Sb 9 S 36 , is a new thallium sulphosalt species found in the Jas Roux As–Sb–Pb–Tl–Hg–Ag deposit, Parc national des Écrins, Département des Hautes-Alpes, France. Associated minerals in four different samples...

...Fig. 1 (a) A stockwork of smithite (red) and jasrouxite (dark) in silicified gangue, split open at the Jas Roux deposit. (b) Macrophotograph of a nest of jasrouxite (black) surrounded by smithite and realgar (red). (c–f) Embayment of myrmekite, composed of As-bearing stibnite ( stb ), smithite...

... in few localities world-wide. Routhierite was first described from the thallium occurrence of Jas Roux, Hautes-Alpes, France ( Johan et al ., 1974 ); it was also found at the Hemlo gold deposit, Ontario, Canada ( Harris, 1989 ), and at Vorontsovskoye, Urals, Russia ( Pekov, 1998 ). Stalderite...

... ( Mantienne 1974 ) is close to the “Pb-rich” pole, whereas the second, more accurate definition ( Johan et al . 1981 ), corresponds to the “Pb-free” pole from the same deposit (Jas Roux). TABLE 10 IDEAL STRUCTURAL FORMULAS IN THE CHABOURNÉITE SERIES RELATED TO VARIOUS MICROPROBE OR CRYSTAL STRUCTURE...

... from Jas Roux, Hautes-Alpes, France. In plane-polarized incident light, arsiccioite is yellowish-white in colour. It is not pleochroic. Between crossed polars, it is weakly anisotropic, with grey to bluish rotation tints. Internal reflections are weak and deep red in colour. There is no optical...

... of wakabayashilite from different occurrences (Khaidarkan, Kyrgyzstan; Jas Roux, France; White Caps mine, USA; Nishinomaki mine, Japan) were selected to verify the possible presence of different molecular groups replacing the As 4 S 5 molecule. Given the chemical (electron probe microanalysis-wavelength dispersive...

... for stalderite (3.28 Å) by Graeser et al. ( 1995 ) and is in the range of Tl–Tl distances observed in other members of the routhierite group, i.e. 3.33 Å and 3.47 Å for routhierite from Monte Arsiccio and Jas Roux, respectively ( Bindi, 2008 ; Biagioni et al. , 2014 a ) and values ranging between 3.25...

...-substituted phases, the lead-free composition from Jas Roux (quoted by Johan et al . 1981 ) has not yet been structurally investigated. A new find of this composition at the Vorontsovskoe gold deposit, Northern Urals, Russia, enabled us to perform a complete high-quality data collection, followed...

... Madoc, Ontario, Canada. Later, Mantienne ( 1974 ) and Johan and Mantienne ( 2000 ) described the Alpine locality of Jas Roux, France, as another important source of Sb-As sulfosalts, second only to the classic locality of Madoc. These two localities surpass in scope other occurrences in the literature...

... to clockwise rotation of the central segment relative to both the essentially immobile northern and southern segments, combined with crust-mantle decoupling. This is considered to have induced crustal friction and resultant generation of fertile magmas that formed the porphyry-skarn Cu-Au deposits. During...

...-essential element with very high acute toxicity and high chronic target organ toxicity ( Nriagu, 1998 ). Significant accumulations of Tl-bearing minerals are rare in nature − the most famous ones are Jas Roux (France), Allchar (Former Yugoslav Republic of Macedonia), Lengenbach (Switzerland) and Skrikerum...

..., Ontario, Canada. Later, Mantienne ( 1974 ) and Johan and Mantienne ( 2000 ) described the Alpine locality of Jas Roux as another important source of Sb-As sulfosalts, second only to the classical locality of Madoc. Other occurrences found in literature, e.g. Pitone marble quarry, Seravezza, Tuscany...

... of synthetic TlSb 5 S 8 in the space group Pn , with unit-cell parameters a  = 8.098(5), b  = 19.415(12), c  = 9.059(6) Å, β = 91.96(8)°, V  = 1423.4(16) Å 3 . After the first findings at Allchar and Jas Roux, parapierrotite was also identified at the Hemlo gold deposit (Ontario, Canada – Harris, 1989...

... deposit is that of Jas Roux, Hautes-Alpes, France ( Johan and Mantienne, 2000 ). However, no data on the possible occurrence of sulfosalt melts are reported in the literature. The only natural sulfide melt described in low- to medium-grade metamorphic rocks is from the Pb-Zn-As-Tl-Ba mineralization...

... Deposits . Resource Geology , 20 , 31 – 37 . Topa , D. , Makovicky , E. , Favreau , G. , Bourgoin , V. , Boulliard , J.-C. , Zagler , G. and Putz , H. ( 2013 ) Jasrouxite, a new Pb-Ag-As-Sb member of the lillianite homologous series from Jas Roux, Hautes-Alpes, France...

... reported by Moëlo et al. (1989) from two Peruvian deposits (up to 4.5 wt%) and from Jas Roux (France), where Mantienne (1974) first noted the occurrence of the As-to-Sb substitution (As = 2.6 wt%). Recently, three As-rich members of the andorite series have been described, i.e. menchettiite...

... 3.38 Tl 1.14 Te 2 Sb 0.03 and Au 3.22 Ag 0.02 Tl 1.00 Te 2 Sb 0.03 . J.L.J. Z. Johan, J. Mantienne (2000) Thallium-rich mineralization at Jas Roux, Hautes-Alpes, France: a complex epithermal, sediment-hosted, ore-forming system. J. Czech Geol. Soc., 45, 63–77. The mineral occurs...

... ) described the Alpine locality of Jas Roux as another important As-Sb locality, second only in importance to the classical locality of Madoc, Ontario (Jambor 1967 a , b ; Jambor et al. , 1982). Although several occurrences of As-Sb sulfosalts were subsequently found, a missing member of this group has...

... Française de in 2005. Photo by R. Pecorini of the famous mineral localities in Microminéralogie). France, including the uranium mines Mr. Favreau is a member of the Micromounter s Hall of Fame (2002), of the Lodève area, the Trimouns talc quarry, the Jas Roux thallium is a much sought-after lecturer...