Tennantite-(Hg), Cu6(Cu4Hg2)As4S13, a new tetrahedrite-group mineral from the Lengenbach quarry, Binn, Switzerland

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00023272%3A_____%2F21%3A10135288" target="_blank" >RIV/00023272:_____/21:10135288 - isvavai.cz</a>

Výsledek na webu

<a href="https://www.cambridge.org/core/journals/mineralogical-magazine/article/tennantitehg-cu6cu4hg2as4s13-a-new-tetrahedritegroup-mineral-from-the-lengenbach-quarry-binn-switzerland/F77CA0988FCFE2D5D628E1A9C9288647" target="_blank" >https://www.cambridge.org/core/journals/mineralogical-magazine/article/tennantitehg-cu6cu4hg2as4s13-a-new-tetrahedritegroup-mineral-from-the-lengenbach-quarry-binn-switzerland/F77CA0988FCFE2D5D628E1A9C9288647</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1180/mgm.2021.59" target="_blank" >10.1180/mgm.2021.59</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Tennantite-(Hg), Cu6(Cu4Hg2)As4S13, a new tetrahedrite-group mineral from the Lengenbach quarry, Binn, Switzerland

Popis výsledku v původním jazyce

Tennantite-(Hg), Cu6(Cu4Hg2)As4S13, was approved as a new mineral species from the Lengenbach quarry, Imfeld, Binn Valley, Canton Valais, Switzerland. It was identified as an aggregate of black metallic tetrahedral crystals, less than 0.1 mm in size, intimately associated with sinnerite, and grown on realgar. In reflected light, tennantite-(Hg) is isotropic, grey in color, with creamy tints. Minimum and maximum reflectance data for COM wavelengths in air are [λ (nm): R (%)]: 470: 29.1; 546: 29.1; 589: 28.5; 650: 27.7. Electron microprobe analysis gave (in wt% - average of 7 spot analyses): Cu 32.57(42), Ag 6.38(19), Tl 0.29(14), Zn 0.04(5), Hg 17.94(227), Pb 0.70(51), As 17.83(61), Sb 0.34(8), S 24.10(41), total 100.19(104). The empirical formula of the studied sample, recalculated on the basis of ΣMe = 16 atoms per formula unit, is (Cu4.69Ag1.04Tl0.03)Σ5.76(Cu4.35Hg1.58Pb0.06Zn0.01)Σ6.00 (As4.20Sb0.05)Σ4.25S13.26. Tennantite-(Hg) is cubic, I 3m, with a = 10.455(7) Å, V = 1143(2) Å3, Z = 2. The crystal structure of tennantite-(Hg) has been refined by single-crystal X-ray diffraction data to a final R1 = 0.0897 on the basis of 214 unique reflections with Fo &gt; 4σ(Fo) and 22 refined parameters. Tennantite-(Hg) is isotypic with other members of the tetrahedrite group. Mercury is hosted at the tetrahedrally coordinated M(1) site, in accord with the relatively long M(1)-S(1) distance (2.389 Å), similar to that observed in tetrahedrite-(Hg). Minor Ag is located at the triangularly-coordinated and split M(2) site. Other occurrences of tennantite-(Hg) are briefly reviewed and the Lengenbach finding is described within the framework of previous knowledge about the Hg mineralogy at this locality.

Název v anglickém jazyce

Tennantite-(Hg), Cu6(Cu4Hg2)As4S13, a new tetrahedrite-group mineral from the Lengenbach quarry, Binn, Switzerland

Popis výsledku anglicky

Tennantite-(Hg), Cu6(Cu4Hg2)As4S13, was approved as a new mineral species from the Lengenbach quarry, Imfeld, Binn Valley, Canton Valais, Switzerland. It was identified as an aggregate of black metallic tetrahedral crystals, less than 0.1 mm in size, intimately associated with sinnerite, and grown on realgar. In reflected light, tennantite-(Hg) is isotropic, grey in color, with creamy tints. Minimum and maximum reflectance data for COM wavelengths in air are [λ (nm): R (%)]: 470: 29.1; 546: 29.1; 589: 28.5; 650: 27.7. Electron microprobe analysis gave (in wt% - average of 7 spot analyses): Cu 32.57(42), Ag 6.38(19), Tl 0.29(14), Zn 0.04(5), Hg 17.94(227), Pb 0.70(51), As 17.83(61), Sb 0.34(8), S 24.10(41), total 100.19(104). The empirical formula of the studied sample, recalculated on the basis of ΣMe = 16 atoms per formula unit, is (Cu4.69Ag1.04Tl0.03)Σ5.76(Cu4.35Hg1.58Pb0.06Zn0.01)Σ6.00 (As4.20Sb0.05)Σ4.25S13.26. Tennantite-(Hg) is cubic, I 3m, with a = 10.455(7) Å, V = 1143(2) Å3, Z = 2. The crystal structure of tennantite-(Hg) has been refined by single-crystal X-ray diffraction data to a final R1 = 0.0897 on the basis of 214 unique reflections with Fo &gt; 4σ(Fo) and 22 refined parameters. Tennantite-(Hg) is isotypic with other members of the tetrahedrite group. Mercury is hosted at the tetrahedrally coordinated M(1) site, in accord with the relatively long M(1)-S(1) distance (2.389 Å), similar to that observed in tetrahedrite-(Hg). Minor Ag is located at the triangularly-coordinated and split M(2) site. Other occurrences of tennantite-(Hg) are briefly reviewed and the Lengenbach finding is described within the framework of previous knowledge about the Hg mineralogy at this locality.

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

2021

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

85

Číslo periodika v rámci svazku

5

Stát vydavatele periodika

GB - Spojené království Velké Británie a Severního Irska

Počet stran výsledku

8

Strana od-do

744-751

Kód UT WoS článku

000723015700010

EID výsledku v databázi Scopus

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