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

Result code in 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>

Result on the web

<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>

Result language

angličtina

Original language name

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

Original language description

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.

Czech name

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Czech description

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Type

J_imp - Article in a specialist periodical, which is included in the Web of Science database

CEP classification

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OECD FORD branch

10504 - Mineralogy

Project

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Continuities

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year

2020

Confidentiality

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

Name of the periodical

Mineralogical Magazine

ISSN

0026-461X

e-ISSN

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Volume of the periodical

84

Issue of the periodical within the volume

4

Country of publishing house

GB - UNITED KINGDOM

Number of pages

9

Pages from-to

584-592

UT code for WoS article

000566874000011

EID of the result in the Scopus database

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