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Kostovite (IMA 1965-002)

Collectors Summary

Color cremeweiß
Hardness (Mohs) 4
Solubility - HNO3, HCl
Crystal System orthorhombisch, Pma2

Chemism

Chemical formula

CuAuTe4

Chemical composition

Gold, Kupfer, Tellur

Unit weight: 770.924852 u; Number of atoms in the formula: 6

Info

Empirical formula:

CuAuTe4

Element

Symbol

Weight%

Atoms

Atoms%

Atom weight (u)

Sum weight (u)

Copper

Cu

8.24

1

16.67

63.5463000

63.5463000

Tellurium

Te

66.21

4

66.67

127.6030000

510.4120000

Gold

Au

25.55

1

16.67

196.9665520

196.9665520

Analysis wt%

Au : 25.20, Cu : 7.70, Te : 67.60 (Ref: American Mineralogist 66)

Strunz 9th edition incl. updates

2.EA.15

2: Sulfide und Sulfosalze (Sulfide, Selenide, Telluride, Arsenide, Antimonide, Bismutide, Sulfarsenite, Sulfantimonite, Sulfbismuthite)
E: Metallsulfide mit M:S >= 1:2
A: M:S = 1:2, mit Cu, Ag, Au; Ni, Sn, PGE, Mo, W
15:Krennerit-Gruppe

Lapis Classification

II/D.16-010

II: SULFIDE UND SULFOSALZE (Sulfide, Selenide, Telluride, Arsenide, Antimonide, Bismutide)
D: Sulfide mit Metall : S,Se,Te < 1:1
16: Telluride mit Kupfer, Silber, Gold

Classification by Hölzel

2.EA.100

2: SULFIDES
E: Me/S=1/2 (also < 1/2)
A: Me/S=1/2 with Cu,Ag,Au, etc.
1: Sylvanite-Group

Dana 8th edition

02.12.13.04

02: Sulfide Minerals
12: Sulfides - Including Selenides and Tellurides where Am Bn Xp, with (m+n):p=1:2
13: Krennerite Group

IMA status

Anerkannt von der CNMNC

Mineral status

anerkanntes Mineral

Optical Properties

Color

cremeweiß

Diaphaneity (Transparency)

opak

Crystallography

Crystal System

orthorhombisch

Class (H-M)

mm2

Space Group number

28

Space Group

Pma2

Cell parameters a (Å)

16.50

Cell parameters b (Å)

8.84

Cell parameters c (Å)

4.42

Cell parameters a/b or c/a

1.867

Cell parameters c/b

0.500

Cell parameters α

90°

Cell parameters β

90°

Cell parameters γ

90°

Z

4

Volumne (ų)

644.701

X-Ray Powder Diffraction

5.10(20),
3.04(100),
2.94(60),
2.10(80),
2.05(40),
1.674(30),
1.510(30),
1.190(30)

XRD chart Kostovite

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

Physical Properties

Hardness (Mohs)

4

VHN (Hardness Vickers)

183 (25g)

Density (g/cm³)

8.43

7.942 ( ρ calc. Mineralienatlas )

Instability

- HNO3, HCl

Preface

Author (Name, Year)

Terziev, 1966

References

American Mineralogist 51 (1966), 29

Related minerals "Strunz Classification" (9. Edition) [Mineral | Chemical formula | Crystal system : Class (H-M) : Space Group | Indenture number]

Kostovite

CuAuTe4

orthorhombisch : mm2 : Pma2

2.EA.15

Krennerite

Au3AgTe8

orthorhombisch : mm2 : Pma2

2.EA.15

'Muchuanite'

MoS2·0.5H2O

trigonal : 3m : P3m1

2.EA.15

Related minerals "Lapis Classification" [Mineral | Chemical formula | Crystal system : Class (H-M) : Space Group | Indenture number]

Kostovite

CuAuTe4

orthorhombisch : mm2 : Pma2

II/D.16-010

Sylvanite

AgAuTe4

monoklin : 2/m : P2/c

II/D.16-020

Krennerite

Au3AgTe8

orthorhombisch : mm2 : Pma2

II/D.16-030

Calaverite

AuTe2

monoklin : 2/m : C2/m

II/D.16-040

Related minerals "Hoelzel Classification" [Mineral | Chemical formula : Crystal system : Class (H-M) | Space Group | Indenture number]

Kostovite

CuAuTe4

orthorhombisch : mm2 : Pma2

2.EA.100

Krennerite

Au3AgTe8

orthorhombisch : mm2 : Pma2

2.EA.110

Sylvanite

AgAuTe4

monoklin : 2/m : P2/c

2.EA.130

Calaverite

AuTe2

monoklin : 2/m : C2/m

2.EA.150

Verbeekite

PdSe2

monoklin, monoklin, monoklin : 2/m, 2, m : C2/m, C2, Cm

2.EA.160

Related minerals "Dana 8. Classification" [Mineral | Chemical formula : Crystal system : Class (H-M) | Space Group | Indenture number]

Krennerite

Au3AgTe8

orthorhombisch : mm2 : Pma2

02.12.13.01

Calaverite

AuTe2

monoklin : 2/m : C2/m

02.12.13.02

Sylvanite

AgAuTe4

monoklin : 2/m : P2/c

02.12.13.03

Kostovite

CuAuTe4

orthorhombisch : mm2 : Pma2

02.12.13.04

Melonite

NiTe2

trigonal : 3m : P3m1

02.12.14.01

Kitkaite

NiTeSe

trigonal : 3m : P3m1

02.12.14.02

Moncheite

(Pt,Pd)(Te,Bi)2

trigonal : 3m : P3m1

02.12.14.03

Merenskyite

PdTe2

trigonal : 3m : P3m1

02.12.14.04

Shuangfengite

IrTe2

trigonal : 3m : P3m1

02.12.14.06

Sudovikovite

PtSe2

trigonal : 3m : P3m1

02.12.14.07

Froodite

PdBi2

monoklin : 2/m : C2/m

02.12.15.01

Urvantsevite

Pd(Bi,Pb)2

tetragonal : 4/mmm : I4/mmm

02.12.15.02

Verbeekite

PdSe2

monoklin, monoklin, monoklin : 2/m, 2, m : C2/m, C2, Cm

02.12.15.03

Borishanskiite

Pd(As,Pb)2

orthorhombisch : mm2 : Ccm21

02.12.16.01

Skutterudite

CoAs3

kubisch : m3 : Im3

02.12.17.01

Nickelskutterudite

(Ni,Co,Fe)As3

kubisch : m3 : Im3

02.12.17.02

Kieftite

CoSb3

kubisch : m3 : Im3

02.12.17.03

Rheniite

ReS2

triklin : 1 : P1

02.12.18.01

Other languages

German

Kostovit

Spanish

Kostovita

French

Kostovite

English

Kostovite

Russian

Костовит

Simplified Chinese

针碲金铜矿

IMA Number

IMA 1965-002

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

German pages

DeWikiPedia - search for: Kostovit
Google-Bilder-Suche - search for: Kostovit
Mineralogisch-Petrographisches-Institut Hamburg - search for: Kostovit

English pages

Mindat - search for: Kostovite
Webmineral - search for: Kostovite
Handbook-of-Mineralogy - search for: Kostovite
RRUFF Database-of-Raman-spectroscopy - search for: Kostovite
American-Mineralogist-Crystal-Structure-Database - search for: Kostovite
Athena - search for: Kostovite

Russian pages

Webmineral.ru - search for: Костовит

Mineral Dealer

German pages

hausen - Mineralgroßhandel - search for: Kostovit
Crystal-Treasure.com - search for: Kostovit
Bosse - search for: Kostovit



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