Annivite-(Zn), Cu6(Cu4Zn2)Σ6Bi4S13, from the Jáchymov ore district, Czech Republic: the first Bi-dominant member of the tetrahedrite group

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00023272%3A_____%2F25%3A10136947" target="_blank" >RIV/00023272:_____/25:10136947 - isvavai.cz</a>

Výsledek na webu

<a href="https://www.cambridge.org/core/services/aop-cambridge-core/content/view/59ACCD83926A6C2D7F39680B867BC890/S0026461X24000549a.pdf/annivite-zn-cu6cu4zn2s6bi4s13-from-the-jachymov-ore-district-czech-republic-the-first-bi-dominant-member-of-the-tetrahedrite-group.pdf" target="_blank" >https://www.cambridge.org/core/services/aop-cambridge-core/content/view/59ACCD83926A6C2D7F39680B867BC890/S0026461X24000549a.pdf/annivite-zn-cu6cu4zn2s6bi4s13-from-the-jachymov-ore-district-czech-republic-the-first-bi-dominant-member-of-the-tetrahedrite-group.pdf</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1180/mgm.2024.54" target="_blank" >10.1180/mgm.2024.54</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Annivite-(Zn), Cu6(Cu4Zn2)Σ6Bi4S13, from the Jáchymov ore district, Czech Republic: the first Bi-dominant member of the tetrahedrite group

Popis výsledku v původním jazyce

Annivite-(Zn), Cu-6(Cu4Zn2)(6)Bi4S13, is a new IMA-approved mineral species from the Geister vein, Jáchymov ore district, Czech Republic. It occurs as anhedral grains, up to 50 microns in size, and growth zones, up to 100 microns in thickness, hosted by oscillatory zoned annivite-(Zn)/tennantite-(Zn) grains, and associated with Bi-rich tennantite-(Zn), tennantite-(Fe), tetrahedrite-(Zn), the not-yet approved &apos;annivite-(Fe)&apos;, bismuth, emplectite, wittichenite and supergene bismite, walpurgite and metazeunerite. In reflected light, annivite-(Zn) is isotropic, pale grey with a brownish shade and very rare pale brown internal reflections. Reflectance data for the four COM wavelengths in air are [lambda (nm): R (%)]: 470: 32.3; 546: 32.0; 589: 32.0; 650: 31.6. Electron microprobe analysis gave (in wt.% - average of 5 spot analyses): Cu 36.29, Ag 0.14, Fe 0.08, Zn 7.11, Pb 0.19, As 6.07, Sb 4.50, Bi 21.08, S 23.68, total 99.14. On the basis of Me=16 atoms per formula unit, the empirical formula of annivite-(Zn) is Cu10.13Ag0.02Zn1.93Fe0.03Pb0.02Bi1.79As1.43Sb0.66S13.10. Annivite-(Zn) is cubic, I-43m, with unit-cell parameters a = 10.3545(6) A, V = 1110.16(19) A3 and Z = 2. Its crystal structure was refined by single-crystal X-ray diffraction data to a final R-1 = 0.0493 on the basis of 278 unique reflections with F-o &gt; 4 sigma(F-o) and 23 refined parameters. Annivite-(Zn) is isotypic with other tetrahedrite-group minerals. Its crystal chemistry is discussed, and previous findings of Bi-rich tetrahedrite-group minerals are briefly reviewed, along with the description of a second finding of annivite-(Zn) from the abandoned Mauritius tin mine, Hřebečná; Krušné hory Mountains, Czech Republic.

Název v anglickém jazyce

Annivite-(Zn), Cu6(Cu4Zn2)Σ6Bi4S13, from the Jáchymov ore district, Czech Republic: the first Bi-dominant member of the tetrahedrite group

Popis výsledku anglicky

Annivite-(Zn), Cu-6(Cu4Zn2)(6)Bi4S13, is a new IMA-approved mineral species from the Geister vein, Jáchymov ore district, Czech Republic. It occurs as anhedral grains, up to 50 microns in size, and growth zones, up to 100 microns in thickness, hosted by oscillatory zoned annivite-(Zn)/tennantite-(Zn) grains, and associated with Bi-rich tennantite-(Zn), tennantite-(Fe), tetrahedrite-(Zn), the not-yet approved &apos;annivite-(Fe)&apos;, bismuth, emplectite, wittichenite and supergene bismite, walpurgite and metazeunerite. In reflected light, annivite-(Zn) is isotropic, pale grey with a brownish shade and very rare pale brown internal reflections. Reflectance data for the four COM wavelengths in air are [lambda (nm): R (%)]: 470: 32.3; 546: 32.0; 589: 32.0; 650: 31.6. Electron microprobe analysis gave (in wt.% - average of 5 spot analyses): Cu 36.29, Ag 0.14, Fe 0.08, Zn 7.11, Pb 0.19, As 6.07, Sb 4.50, Bi 21.08, S 23.68, total 99.14. On the basis of Me=16 atoms per formula unit, the empirical formula of annivite-(Zn) is Cu10.13Ag0.02Zn1.93Fe0.03Pb0.02Bi1.79As1.43Sb0.66S13.10. Annivite-(Zn) is cubic, I-43m, with unit-cell parameters a = 10.3545(6) A, V = 1110.16(19) A3 and Z = 2. Its crystal structure was refined by single-crystal X-ray diffraction data to a final R-1 = 0.0493 on the basis of 278 unique reflections with F-o &gt; 4 sigma(F-o) and 23 refined parameters. Annivite-(Zn) is isotypic with other tetrahedrite-group minerals. Its crystal chemistry is discussed, and previous findings of Bi-rich tetrahedrite-group minerals are briefly reviewed, along with the description of a second finding of annivite-(Zn) from the abandoned Mauritius tin mine, Hřebečná; Krušné hory Mountains, Czech Republic.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

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OECD FORD obor

10504 - Mineralogy

Projekt

—

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2025

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

89

Číslo periodika v rámci svazku

1

Stát vydavatele periodika

GB - Spojené království Velké Británie a Severního Irska

Počet stran výsledku

11

Strana od-do

102-112

Kód UT WoS článku

001423968300001

EID výsledku v databázi Scopus

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