Tennantite-(Cd), Cu6(Cu4Cd2)As4S13, from the Berenguela mining district, Bolivia: the first Cd-member of the tetrahedrite group

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00023272%3A_____%2F22%3A10135684" target="_blank" >RIV/00023272:_____/22:10135684 - isvavai.cz</a>

Alternative codes found

RIV/00216224:14310/22:00127639

Result on the web

<a href="https://www.cambridge.org/core/services/aop-cambridge-core/content/view/4803401B951D55D86A49648730DA9CB4/S0026461X22000615a.pdf/tennantite-cd-cu6cu4cd2as4s13-from-the-berenguela-mining-district-bolivia-the-first-cd-member-of-the-tetrahedrite-group.pdf" target="_blank" >https://www.cambridge.org/core/services/aop-cambridge-core/content/view/4803401B951D55D86A49648730DA9CB4/S0026461X22000615a.pdf/tennantite-cd-cu6cu4cd2as4s13-from-the-berenguela-mining-district-bolivia-the-first-cd-member-of-the-tetrahedrite-group.pdf</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1180/mgm.2022.61" target="_blank" >10.1180/mgm.2022.61</a>

Result language

angličtina

Original language name

Tennantite-(Cd), Cu6(Cu4Cd2)As4S13, from the Berenguela mining district, Bolivia: the first Cd-member of the tetrahedrite group

Original language description

Tennantite-(Cd), Cu10Cd2As4S13, was approved as a new mineral species from the Berenguela mining district, Pacajes Province, La Paz, Bolivia. It occurs as black metallic anhedral grains, up to 1 mm across, associated with baryte, montmorillonite and secondary Cd-sulfates (aldridgeite, niedermayrite and voudourisite). In reflected light, tennantite-(Cd) is isotropic and grey with brownish tints. Reflectance data for the four COM wavelengths in air are [lambda (nm): R (%)1: 470: 30.0; 546: 30.1; 589: 28.2; and 650: 25.8. Electron microprobe analysis gave (in wt.% - average of 11 spot analyses): Cu 40.56(32), Ag 0.05(5), Fe 0.04(1), Zn 1.91(63), Cd 11.32(1.09), Hg 0.04(7), As 19.04(43), S 26.78(30), total 99.74(53). On the basis of suma Me = 16 atoms per formula unit (apfu), the empirical formula of tennantite-(Cd) is Cu9.98Ag0.01Cd1.57Zn0.46Fe0.01As3.97S13.05. Tennantite-(Cd) is cubic, I4-3m, with unit-cell parameters a = 10.3088(2) angstrom, V = 1095.53(6) angstrom3 and Z = 2. Its crystal structure was refined by single-crystal X-ray diffraction data to a final R-1 = 0.0152 on the basis of 359 unique reflections with F-o &gt; 4 sigma(Fo) and 22 refined parameters. Tennantite-(Cd) is isotypic with other tetrahedrite-group minerals. Its crystal-chemistry is discussed and previous findings of Cd-rich tetrahedrite-group minerals are briefly reviewed.

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

2022

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

86

Issue of the periodical within the volume

5

Country of publishing house

GB - UNITED KINGDOM

Number of pages

7

Pages from-to

834-840

UT code for WoS article

000854361300001

EID of the result in the Scopus database

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