Tetrahedrite-(Hg), a new 'old' member of the tetrahedrite group

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00023272%3A_____%2F20%3A10134887" target="_blank" >RIV/00023272:_____/20:10134887 - isvavai.cz</a>

Výsledek na webu

<a href="https://www.cambridge.org/core/journals/mineralogical-magazine/article/tetrahedritehg-a-new-old-member-of-the-tetrahedrite-group/026C031BDC8E74CDFA72205E6B8D9B46" target="_blank" >https://www.cambridge.org/core/journals/mineralogical-magazine/article/tetrahedritehg-a-new-old-member-of-the-tetrahedrite-group/026C031BDC8E74CDFA72205E6B8D9B46</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1180/mgm.2020.36" target="_blank" >10.1180/mgm.2020.36</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Tetrahedrite-(Hg), a new 'old' member of the tetrahedrite group

Popis výsledku v původním jazyce

Tetrahedrite-(Hg), Cu-6(Cu4Hg2)Sb4S13, has been approved as a new mineral species using samples from Buca della Vena mine (hereafter BdV), Italy, Jedova hora (Jh), Czech Republic and Roznava (R), Slovakia. It occurs as anhedral grains or as tetrahedral crystals, black in colour, with metallic lustre. At BdV it is associated with cinnabar and chalcostibite in dolomite veins. At Jh, tetrahedrite-(Hg) is associated with baryte and chalcopyrite in quartz-siderite-dolomite veins; at R it is associated with quartz in siderite-quartz veins. Tetrahedrite-(Hg) is isotropic, greyish-white in colour, with creamy tints. Chemical formulae of the samples studied, recalculated on the basis of 4 (As + Sb + Bi) atoms per formula unit, are: (Cu9.44Ag0.07)(9.51)(Hg1.64Zn0.36Fe0.06)( 2.06)Sb4(S12.69Se0.01)(12.70) (BdV), Cu-9.69(Hg1.75Fe0.25Zn0.06)( 2.06)(Sb3.94As0.06)S-12.87 (Jh) and (Cu9.76Ag0.04) (9.80)(Hg1.83Fe0.15Zn0.10)( 2.08)(Sb3.17As0.58Bi0.25)S-13.01 (R). Tetrahedrite-(Hg) is cubic, I (4) 3m, with a = 10.5057(8) angstrom, V = 1159.5(3) angstrom(3) and Z = 2 (BdV). Unit-cell parameters for the other two samples are a = 10.4939(1) angstrom and V = 1155.61(5) angstrom(3) (Jh) and a = 10.4725(1) angstrom and V = 1148.55(6) angstrom(3) (R). The crystal structure of tetrahedrite-(Hg) has been refined by single-crystal X-ray diffraction data to a final R-1 = 0.019 on the basis of 335 reflections with F-o &gt; 4 sigma(F-o) and 20 refined parameters. Tetrahedrite-(Hg) is isotypic with other members of the tetrahedrite group. Mercury is hosted at the tetrahedrally coordinated M(1) site, along with minor Zn and Fe. The occurrence of Hg at this position agrees both with the relatively large M(1)-S(1) bond distance (2.393 angstrom) and the refined site scattering. Previous occurrences of Hg-rich tetrahedrite and tetrahedrite-(Hg) are reviewed, and its relations with other Hg sulfosalts are discussed.

Název v anglickém jazyce

Tetrahedrite-(Hg), a new 'old' member of the tetrahedrite group

Popis výsledku anglicky

Tetrahedrite-(Hg), Cu-6(Cu4Hg2)Sb4S13, has been approved as a new mineral species using samples from Buca della Vena mine (hereafter BdV), Italy, Jedova hora (Jh), Czech Republic and Roznava (R), Slovakia. It occurs as anhedral grains or as tetrahedral crystals, black in colour, with metallic lustre. At BdV it is associated with cinnabar and chalcostibite in dolomite veins. At Jh, tetrahedrite-(Hg) is associated with baryte and chalcopyrite in quartz-siderite-dolomite veins; at R it is associated with quartz in siderite-quartz veins. Tetrahedrite-(Hg) is isotropic, greyish-white in colour, with creamy tints. Chemical formulae of the samples studied, recalculated on the basis of 4 (As + Sb + Bi) atoms per formula unit, are: (Cu9.44Ag0.07)(9.51)(Hg1.64Zn0.36Fe0.06)( 2.06)Sb4(S12.69Se0.01)(12.70) (BdV), Cu-9.69(Hg1.75Fe0.25Zn0.06)( 2.06)(Sb3.94As0.06)S-12.87 (Jh) and (Cu9.76Ag0.04) (9.80)(Hg1.83Fe0.15Zn0.10)( 2.08)(Sb3.17As0.58Bi0.25)S-13.01 (R). Tetrahedrite-(Hg) is cubic, I (4) 3m, with a = 10.5057(8) angstrom, V = 1159.5(3) angstrom(3) and Z = 2 (BdV). Unit-cell parameters for the other two samples are a = 10.4939(1) angstrom and V = 1155.61(5) angstrom(3) (Jh) and a = 10.4725(1) angstrom and V = 1148.55(6) angstrom(3) (R). The crystal structure of tetrahedrite-(Hg) has been refined by single-crystal X-ray diffraction data to a final R-1 = 0.019 on the basis of 335 reflections with F-o &gt; 4 sigma(F-o) and 20 refined parameters. Tetrahedrite-(Hg) is isotypic with other members of the tetrahedrite group. Mercury is hosted at the tetrahedrally coordinated M(1) site, along with minor Zn and Fe. The occurrence of Hg at this position agrees both with the relatively large M(1)-S(1) bond distance (2.393 angstrom) and the refined site scattering. Previous occurrences of Hg-rich tetrahedrite and tetrahedrite-(Hg) are reviewed, and its relations with other Hg sulfosalts are discussed.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10504 - Mineralogy

Projekt

—

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2020

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Mineralogical Magazine

ISSN

0026-461X

e-ISSN

—

Svazek periodika

84

Číslo periodika v rámci svazku

4

Stát vydavatele periodika

GB - Spojené království Velké Británie a Severního Irska

Počet stran výsledku

9

Strana od-do

584-592

Kód UT WoS článku

000566874000011

EID výsledku v databázi Scopus

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