Vorontsovite, (Hg5Cu)Σ6TlAs4S12, and Ferrovorontsovite, (Fe5Cu)Σ6TlAs4S12: The Tl- and Tl-Fe-Analogues of Galkhaite from the Vorontsovskoe Gold Deposit, Northern Urals, Russia

Kasatkin, Anatoly V.; Nestola, Fabrizio; Agakhanov, Atali A.; Škoda, Radek; Karpenko, Vladimir Yu.; Tsyganko, M.V.; Plášil, Jakub

doi:10.3390/min8050185

Cited by 14 publications

(10 citation statements)

References 17 publications

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“…The geological location of the deposit and composition of its main mineral types of ore is shortly given in companion paper describing two other new Tl-bearing minerals originating from Vorontsovskoe deposit, vorontsovite and ferrovorontsovite, in the same special issue [6].…”

Section: Occurrencementioning

confidence: 99%

Tsygankoite, Mn8Tl8Hg2(Sb21Pb2Tl)Σ24S48, a New Sulfosalt from the Vorontsovskoe Gold Deposit, Northern Urals, Russia

et al. 2018

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Tsygankoite, ideally Mn 8 Tl 8 Hg 2 (Sb 21 Pb 2 Tl) Σ24 S 48 , is a new sulfosalt discovered at the Vorontsovskoe gold deposit, Northern Urals, Russia. It occurs as lath-like elongated crystals up to 0.2 mm embedded in calcite-dolomite-clinochlore matrix. The associated minerals also include aktashite, alabandite, arsenopyrite, barite, cinnabar, fluorapatite, orpiment, pyrite, realgar, routhierite, sphalerite, tilasite, and titanite. The new mineral is non-fluorescent, black, and opaque with a metallic lustre and black streak. It is brittle with an uneven fracture and no obvious parting and cleavage. Its Vickers hardness (VHN 10) is 144 kg/mm 2 (range 131-167 kg/mm 2) and its calculated density is 5.450 g•cm −3. In reflected light, tsygankoite is white; between crossed polars it is dark grey to black. It is strongly anisotropic: rotation tints vary from light grey to dark grey to black. Pleochroism and internal reflections are not observed. The chemical composition of tsygankoite (wt %, electron-microprobe data) is:

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Section: Occurrencementioning

confidence: 99%

Tsygankoite, Mn8Tl8Hg2(Sb21Pb2Tl)Σ24S48, a New Sulfosalt from the Vorontsovskoe Gold Deposit, Northern Urals, Russia

et al. 2018

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“…Первое -это исследование новых минеральных видов. На сегодняшний день их открыто восемь: воронцовит, ферроворонцовит (Kasatkin et al, 2018a), цыганкоит (Kasatkin et al, 2018b), гладковскиит (Kasatkin et al, 2019), люборжакит (Kasatkin et al, 2020a), походяшинит (Kasatkin et al, 2020b), гунгерит (Kasatkin et al, 2020c) и ауэрбахит (Kasatkin et al, 2020d). Другое направление наших работ -исследование кристаллических структур сульфосолей.…”

Section: минералогия 6(4) 2020unclassified

Mineralogy of the Vorontsovskoe gold deposit (Northern Urals). Part 1: history of study, mineral assemblages, list of minerals

Kasatkin¹,

Stepanov

Tsyganko³

et al. 2020

Минералогия (Mineralogy)

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This work is the frst paper in a series of publications dedicated to mineralogy of the Vorontsovskoe gold deposit in the Northern Urals. The deposit is unique for both Russia and world with regard to the diversity and originality of Tl–Hg–Mn–As–Sb–S mineralization. Based on available literature and our data, we compiled an exhaustive list of 209 mineral species of the deposit, including eight new minerals found by the authors: vorontsovite, ferrovorontsovite, tsygankoite, gladkovskyite, luborzakite, pokhodyashinite, gungerite and auerbakhite. In addition, 40 and 89 minerals are found for the frst time in Russia and the deposit, respectively. Systematic studies of ores revealed nine main mineral assemblages, seven of which are confned to carbonate breccias. They contain more than 70 rare sulfdes, tellurides and sulfosalts including 30, 12 and 9 minerals, where Tl, Hg and Mn are species-defning elements, respectively. In this paper, we characterize the history of study of the deposit, its geological position and structure, ore types, mineral assemblages, and analytical methods.

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“…Makovicky (2005) stressed the porous nature of this sulfosalt and in this respect galkhaite could host other large cations, replacing Cs + , such as Tl + and possibly NH 4 + . Recently, the thallium analog of galkhaite has been described from the Vorontsovskoe deposit, Urals Region, Russia, by Kasatkin et al (2018) and named vorontsovite, ideally Hg 5 CuTlAs 4 S 12 . The same authors described also the Fe isotype ferrovorontsovite, Fe 5 CuTlAs 4 S 12 , from the same Russian locality.…”

Section: Galkhaite and Its Isotypes Vorontsovite And Ferrovorontsovitementioning

confidence: 99%

A crystallographic excursion in the extraordinary world of minerals: the case of Cu- and Ag-rich sulfosalts

Bindi

Biagioni

2018

Acta Crystallogr Sect B

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Copper and silver are common constituents in natural sulfosalts and can be present as minor or major components. Owing to the different kinds of coordination they can assume, these elements give rise to a number of sulfosalts that are usually quite complex to describe from a structural point of view because of the presence of twinning, disorder, polytypism and sometimes incommensurate modulation. Moreover, it is common to find them in different, partially occupied split sites, favoring the presence of strong ionic conductivity that can be related to a number of interesting technological properties. In this regard, a series of Cu-and Ag-rich sulfosalts showing an excess of these cations with respect to As, Sb and Bi is particularly interesting. Their crystal structures as well as their potential interest for materials science and solid-state physics are outlined. Copper-and mixed (Cu, Ag)-sulfosalts belonging to the wittichenite, tetrahedrite, galkhaite, routhierite and nowackiite series are discussed, together with some related compounds. Whereas in the wittichenite series Cu has either a trigonal planar or tetrahedral coordination, in members of the other series this element forms three-dimensional tetrahedral frameworks giving rise to cavities hosting other cations and anions. More difficult is the description of Ag-rich sulfosalts owing to the highly variable coordination environments shown by this element. Structural features of selected Ag sulfosalts together with members of the argyrodite series are discussed, highlighting the particular properties derived from the behavior of Ag.

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Vorontsovite, (Hg5Cu)Σ6TlAs4S12, and Ferrovorontsovite, (Fe5Cu)Σ6TlAs4S12: The Tl- and Tl-Fe-Analogues of Galkhaite from the Vorontsovskoe Gold Deposit, Northern Urals, Russia

Cited by 14 publications

References 17 publications

Tsygankoite, Mn8Tl8Hg2(Sb21Pb2Tl)Σ24S48, a New Sulfosalt from the Vorontsovskoe Gold Deposit, Northern Urals, Russia

Tsygankoite, Mn8Tl8Hg2(Sb21Pb2Tl)Σ24S48, a New Sulfosalt from the Vorontsovskoe Gold Deposit, Northern Urals, Russia

Mineralogy of the Vorontsovskoe gold deposit (Northern Urals). Part 1: history of study, mineral assemblages, list of minerals

A crystallographic excursion in the extraordinary world of minerals: the case of Cu- and Ag-rich sulfosalts

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