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Tennantite-(Cu)

Pictures (1 Images total)

Silber ged. sehr dünn auf Tetraedrit-Zn
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1621189335
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Silber ged. sehr dünn auf Tetraedrit-Zn
Nach nochmaliger Analyse, Silber ged. sehr dünn auf Tetraedrit-Zn; Tennantit (Cu) auf Ag-und Zn-haltigen Tetraedrit, BB: 3,14 mm
Copyright: Bode; Contribution: Bode
Collection: Bode
Location: Österreich/Tirol/Kufstein, Bezirk/Reith im Alpbachtal/St. Gertraudi/Reither Kogel/Kleinkogel/Jungfrauenzeche
Mineral: Silver, Tennantite-(Cu), Tetrahedrite-(Zn)
Image: 1621189335
License: Usage for Mineralienatlas project only
Silber ged. sehr dünn auf Tetraedrit-Zn  E
Analysed with energy dispersive X-ray spectroscopy EDX

Nach nochmaliger Analyse, Silber ged. sehr dünn auf Tetraedrit-Zn; Tennantit (Cu) auf Ag-und Zn-haltigen Tetraedrit, BB: 3,14 mm
Collection: Bode
Copyright: Bode
Contribution: Bode 2021-05-16
Locality: Jungfrauenzeche / Kleinkogel / Reither Kogel / St. Gertraudi / Reith im Alpbachtal / Kufstein, Bezirk / Tirol / Österreich

Collectors Summary

Color schwarz
Streak color schwarz
Lustre Metallglanz
Hardness (Mohs) etwa 3,5 - 4
Crystal System kubisch, I43m

Chemism

Chem­ical formula

Cu6(Cu4Cu2)As4S13

Empir­ical formula (anal­y­sis)

(Cu11.27Fe0.57Zn0.02)Σ11.86(As3.77Sb0.23)Σ4.00S12.57

Chem­ical com­po­si­tion

Arsen, Kupfer, Schwefel

Unit weight: 1462.82935054 u; Number of atoms in the formula: 28.43

Info

Empirical formula:

(Cu11.27Fe0.57Zn0.02)(As3.77Sb0.23)S12.57

Element

Symbol

Weight%

Atoms

Atoms%

Atom weight (u)

Sum weight (u)
Sulfur

S

27.55

12.57

44.21

32.0655000

403.0633350
Iron

Fe

2.18

0.57

2.00

55.8452000

31.8317640
Copper

Cu

48.96

11.27

39.64

63.5463000

716.1668010
Zinc

Zn

0.09

0.02

0.07

65.4094000

1.3081880
Arsenic

As

19.31

3.77

13.26

74.9216020

282.4544395
Antimony

Sb

1.91

0.23

0.81

121.7601000

28.0048230

IMA sta­tus

anerkannt - CNMNC Newsletter 60, Februar - März 2021

Min­eral sta­tus

anerkanntes Mineral

IMA Classification

IMA Classification

 Tetrahedrite Group  ⇒ Tennantite series

Optical Properties

Color

schwarz

Streak color

schwarz

Lus­tre

Metallglanz

Crystallography

Crystal Sys­tem

kubisch

Class (H-M)

43m

Space Group number

217

Space Group

I43m

Cell param­e­ters a (Å)

10.1710(10)

Cell param­e­ters b (Å)

-

Cell param­e­ters c (Å)

-

Cell param­e­ters a/b or c/a

1

Cell param­e­ters c/b

-

Cell param­e­ters α

90°

Cell param­e­ters β

90°

Cell param­e­ters γ

90°

Z

2

Volumne (ų)

1052.182

Kristall struc­ture

Tetraedrit-Gruppe; Struktur ermittelt

X-Ray Pow­der Diffrac­tion

4.152(4), 2.936(100), 2.543(18), 1.995(4), 1.857(8), 1.798(43), 1.650(4), 1.533(21)
XRD chart Tennantite-(Cu)

Calculated from d-spacing and intensity at 0.1541838 nm (Cu)

Physical Properties

Hard­ness (Mohs)

etwa 3,5 - 4

Density (g/cm³)

4.656 ber.

4.617 ( ρ calc. Mineralienatlas )

(Co-)Type locality

(Co-)Type locality

Peru/Arequipa, Region/Castilla, Provinz/Layo Lagerstätte

Type material

Das Typusmaterial befindet sich in den Sammlungen der Abteilung für Mineralogie und Petrologie des Nationalmuseums in Prag, Cirkusová 1740, 19300 Praha 9, Tschechische Republik, Katalognummer P1P 742020, im Museo di Storia Naturale, Università di Pisa, Via Roma 79, Calci (PI), Katalognummer 19925, und im Mineralogischen Museum (MINES ParisTech) der Ecole des Mines de Paris, 60 Blvd. Saint-Michel, 75006 Paris, Frankreich, Katalognummer ENSMP 83990.

Paragenesis of type material

Enargit, Chalkopyrit, Vinciennit

Preface

Author (Name, Year)

Cristian Biagioni, Jiří Sejkora, Yves Moëlo, Eric Marcoux, Daniela Mauro und Zdeněk Dolníček (2022)

References

Biagioni, C., Sejkora, J., Moëlo, Y., Marcoux, E., Mauro, D. and Dolníček, Z. (2021) Tennantite-(Cu), IMA 2020-096. CNMNC Newsletter 60; Mineralogical Magazine, 85, https://doi.org/10.1180/mgm.2021.30

Cristian Biagioni; Jiří Sejkora; Yves Moëlo; Eric Marcoux; Daniela Mauro; Zdeněk Dolníček: Tennantite-(Cu), Cu12As4S13, from Layo, Arequipa Department, Peru: a new addition to the tetrahedrite-group minerals. Mineralogical Magazine Vol.86, Nr. 2 (2022) S. 331-339. doi: 10.1180/mgm.2022.26

IMA group assignments

Other languages

German

Tennantit-(Cu)

English

Tennantite-(Cu)

CNMNC (IMA)-Number

IMA 2020-096

CNMNC symbol

Symbol

Tnt-Cu

Automatic Links to external internet sources (Responsibility is with the operator)

German pages

 DeWikiPedia - search for: Tennantit-(Cu)
Google-Bilder-Suche - search for: Tennantit-(Cu)
Mineralienatlas.de (Forum) - search for: Tennantit-(Cu)

English pages

 Mindat - search for: Tennantite-(Cu)
Webmineral - search for:Tennantite-(Cu)
Handbook-of-Mineralogy - search for: Tennantite-(Cu)
RRUFF - Raman, XRD and other mineral data - search for: Tennantite-(Cu)
RRUFF - References and PDF downloads - search for: Tennantite-(Cu)
American-Mineralogist-Crystal-Structure-Database - search for: Tennantite-(Cu)
Strahlen.org - search for: Tennantite-(Cu)

Mineral Dealer

German pages

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Crystal-Treasure.com - search for: Tennantit-(Cu)
Bosse - search for: Tennantit-(Cu)
Edelsteine Neuburg - Gundolf Fischer - search for: Tennantit-(Cu)
Geolitho marketplace, by and for collectors - search for: Tennantit-(Cu)

Locations with GPS information