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

Result code in 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>

Result on the web

<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>

Result language

angličtina

Original language name

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

Original language description

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.

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

2025

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

89

Issue of the periodical within the volume

1

Country of publishing house

GB - UNITED KINGDOM

Number of pages

11

Pages from-to

102-112

UT code for WoS article

001423968300001

EID of the result in the Scopus database

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