...Werner H. Paar; Hubert Putz; Dan Topa; Andrew C. Roberts; Chris J. Stanley; Franz J. Culetto Abstract Jonassonite, ideally Au(Bi,Pb) 5 S 4 , was detected in old mining dumps of the abandoned Nagybörzsöny deposit at Alsó–Rózsa, on the western margin of the Börzsöny Mountains, northern Hungary...

..., ikunolite, jonassonite, and cosalite, in a matrix of quartz. It is opaque, tin-white, has a metallic lustre and a black streak. Jaszczakite is brittle, and the fracture is irregular. Neither cleavage nor parting are observable in the section. The VHN 5 value ranges between 115 and 132 (mean 122) kg mm −2...

...F ig . 6. Backscattered electron photomicrographs. ( a ) Jonassonite (jona) intergrown with native gold (Au), native bismuth (Bi) and two varieties of hedleyite (Bi 7 Te 3 and Bi 2 Te), AS 4225e, Viceroy Mine. ( b ) Jonassonite (jona), native gold (Au) and native bismuth (Bi) attached...

...), 673–677. Jaszczakite (IMA 2016-077) with formula [(Bi,Pb) 3 S 3 ][AuS 2 ], is a new mineral species discovered in a single ore specimen which contained earlier described jonassonite, Au(Bi,Pb) 5 S 4 from the abandoned Nagybörzsöny Au deposit at Alsó-Rózsa, northern Hungary. The deposit is bound...

..., gold, baryte and carbonates. Of the various selenium tellurides, the tetradymite minerals pilsenite, ikunolite, tetradymite, joséite-A and joséite-B are present, in addition to other Au–Ag–Bi–Te minerals (jonassonite, petzite, hessite and jaszczakite) (Koch and Grassely, 1952 ; Paar et al ., 2006...

... in chalcopyrite; BSE image. H. Antimonian bismuthinite coexists with bismuthinite, heteromorphite, antimonian bismuth, chalcopyrite, cosalite, and sphalerite; BSE image. I. Heteromorphite coexists with jonassonite, cosalite, and chalcopyrite; BSE image. Abbreviations: Ank = ankerite, Apy = arsenopyrite, Aur...

..., and lillianite (Szakáll et al. 2012 ; Zajzon et al. 2014 ). The Nagybörzsöny deposit is the type locality of pilsenite (Kenngott 1853 ), jonassonite (Paar et al. 2006 ), and jaszczakite (Bindi and Paar 2017 ). According to Koch and Graselly ( 1953 ), small (~1 mm) aggregates of cronstedtite were first...

... minerals in ore deposits. In contrast, sulfosalts of gold are unknown, with the possible exception of the insufficiently understood jonassonite ( Paar et al. 2006 ) and a homologous pair of sulfide-tellurides, nagyagite and buckhornite, which were structurally characterized by Effenberger et al. (1999...

... system. Maldonite partially decomposes into symplectites of native Au and Bi during cooling below ~116 °C. However, the same ores include Bi-tellurides and/or sulfotellurides (e.g., joseite B, Fig. 4 ), jonassonite, and bismuthinite ( Ciobanu et al., 2007 ). Of these, only bismuthinite shows clear...

..., Chris Ryan, and Hugh Jones 1079 Solid solutions of niobium in synthetic titanite— Ruslan P. Liferovich and Roger H. Mitchell 1089 Jonassonite, Au(Bi,Pb) 5 S 4 , a new mineral species from Nagybörzsöny, Hungary— Werner H. Paar, Hubert Putz, Dan Topa, Andrew C. Roberts, Chris J. Stanley...