Tetrahedrite-(Cd), Cu6(Cu4Cd2)Sb4S13, from Radětice near Příbram, Czech Republic: the new Cd-member of the tetrahedrite group

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00023272%3A_____%2F23%3A10136208" target="_blank" >RIV/00023272:_____/23:10136208 - isvavai.cz</a>

Result on the web

<a href="https://ejm.copernicus.org/articles/35/897/2023/" target="_blank" >https://ejm.copernicus.org/articles/35/897/2023/</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.5194/ejm-35-897-2023" target="_blank" >10.5194/ejm-35-897-2023</a>

Result language

angličtina

Original language name

Tetrahedrite-(Cd), Cu6(Cu4Cd2)Sb4S13, from Radětice near Příbram, Czech Republic: the new Cd-member of the tetrahedrite group

Original language description

Tetrahedrite-(Cd), Cu6(Cu4Cd2)Sb4S13, is a new IMA-approved mineral species from Radětice near the Příbram deposit, Czech Republic. It occurs as black metallic anhedral grains, up to 200 µm in size in quartz-calcite gangue, associated with galena, bournonite, sphalerite, pyrite, geocronite, silver, stromeyerite, tetrahedrite-(Zn), tetrahedrite-(Fe), tetrahedrite-(Cu), and an unknown Pb-rich tetrahedrite-like phase. In reflected light, tetrahedrite-(Cd) is isotropic and grey with greenish tints. Reflectance data for the four COM wavelengths in air are as follows (λ (nm) : R (%)): 470 : 30.8, 546 : 31.1, 589 : 31.1 and 650 : 28.8. Electron microprobe analysis gave (in wt % - average of 13 spot analyses) Cu 34.85, Ag 2.09, Fe 0.18, Zn 0.26, Cd 11.03, Hg 0.75, Pb 0.31, Sb 28.07, and S 23.38, with a total of 100.92. On the basis of ΣMe = 16 atoms per formula unit, the empirical formula of tetrahedrite-(Cd) is Cu9.65Ag0.34Cd1.73Zn0.07Hg0.07Fe0.06Pb0.03Sb4.06S12.84. Tennantite-(Cd) is cubic, with unit-cell parameters a=10.504(3) Å, V=1158.9(9) Å3, and Z=2. Its crystal structure was refined by single-crystal X-ray diffraction data to a final R1=0.0252 on the basis of 257 unique reflections with Fo&gt;4σ(Fo) and 23 refined parameters. Tetrahedrite-(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

<a href="/en/project/GA19-16218S" target="_blank" >GA19-16218S: Complex Ag-(Sb,As) bonanza mineralizations in the Příbram uranium and base-metal district - model example of origin of strongly enriched ore bodies</a><br>

Continuities

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year

2023

Confidentiality

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

Name of the periodical

European Journal of Mineralogy

ISSN

1617-4011

e-ISSN

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Volume of the periodical

35

Issue of the periodical within the volume

6

Country of publishing house

DE - GERMANY

Number of pages

11

Pages from-to

897-907

UT code for WoS article

001170807800001

EID of the result in the Scopus database

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