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Gaotaiite (Gaotaiit)

Additional Functions

Collectors Summary

Color leuchtend weiß mit bläulichen Farbton
Streak color schwarz
Hardness (Mohs) 3.25
Cleavages keine
Fracture nicht beobachtet
Crystal System kubisch, Pa3

Chemism

Chemical formula

Ir3Te8

Chemical composition

Iridium, Tellur

Unit weight: 1597.4759 u; Number of atoms in the formula: 11

Info

Empirical formula:

Ir3Te8

Element

Symbol

Weight%

Atoms

Atoms%

Atom weight (u)

Sum weight (u)

Tellurium

Te

63.90

8

72.73

127.6030000

1,020.8240000

Iridium

Ir

36.10

3

27.27

192.2173000

576.6519000

Analysis wt%

Ir : 35.60, Te : 62.80, PLT : 35.70 (Ref: American Mineralogist S95)

Strunz 9th edition incl. updates

2.EB.05

2: Sulfide und Sulfosalze (Sulfide, Selenide, Telluride, Arsenide, Antimonide, Bismutide, Sulfarsenite, Sulfantimonite, Sulfbismuthite)
E: Metallsulfide mit M:S >= 1:2
B: M:S = 1:2, mit Fe, Co, Ni, PGE, usw.
05:Pyrit-Gruppe

Lapis Classification

II/D.29-040

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

Classification by Hölzel

2.EB.340

2: SULFIDES
E: Me/S=1/2 (also < 1/2)
B: With Fe,Co,Ni,PGE Pyrite, Marcasite Family
3: Laurite-Group

Dana 8th edition

02.12.01.18

02: Sulfide Minerals
12: Sulfides - Including Selenides and Tellurides where Am Bn Xp, with (m+n):p=1:2
01: Pyrite Group (Isometric: Pa3)

IMA status

Anerkannt von der CNMNC

Mineral status

anerkanntes Mineral

Optical Properties

Color

leuchtend weiß mit bläulichen Farbton

Streak color

schwarz

Diaphaneity (Transparency)

opak

Crystallography

Crystal System

kubisch

Class (H-M)

m3

Space Group number

205

Space Group

Pa3

Cell parameters a (Å)

6.413

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

1

Volumne (ų)

263.745

X-Ray Powder Diffraction

2.86(70),
2.60(60),
1.93(100),
1.713(60),
1.235(80),
1.132(90),
1.040(80),
0.978(80)

XRD chart Gaotaiite

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

Physical Properties

Hardness (Mohs)

3.25

VHN (Hardness Vickers)

117 (20g)

Density (g/cm³)

9.97

10.057 ( ρ calc. Mineralienatlas )

Cleavages

keine

Fracture

nicht beobachtet

Tenacity

spröde

Preface

Author (Name, Year)

Yu Zuxiang, 1995

References

Acta Mineralogica Sinica (in Chinese) 15 (1995), 1

Other languages

German

Gaotaiit

English

Gaotaiite

French

Gaotaiite

Spanish

Gaotaiíta

Russian

Гаотайит

Japanese

ガオタイ鉱

CNMNC (IMA)-Number

IMA 1993-017

CNMNC symbol

Symbol

Gao