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Iridisite (Iridisit)

Additional Functions

Collectors Summary

Color stahlgrau
Streak color schwarz
Hardness (Mohs) 7
Crystal System kubisch, Pa3

Chemism

Chemical formula

(Ir,Cu,Rh)S2

Chemical composition

Iridium, Kupfer, Rhodium, Schwefel

Unit weight: 208.8158202 u; Number of atoms in the formula: 3

Info

Empirical formula:

(Ir0.6Cu0.3Rh0.1)S2

Element

Symbol

Weight%

Atoms

Atoms%

Atom weight (u)

Sum weight (u)
Sulfur

S

30.71

2

66.67

32.0655000

64.1310000
Copper

Cu

9.13

0.3

10.00

63.5463000

19.0638900
Rhodium

Rh

4.93

0.1

3.33

102.9055020

10.2905502
Iridium

Ir

55.23

0.6

20.00

192.2173000

115.3303800

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.29-030

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

Classification by Hölzel

2.EB.330

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

IMA status

zurückgewiesen, nicht anerkannt

Mineral status

Mineralstatus fragwürdig

Optical Properties

Color

stahlgrau

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)

5.635

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

4

Volumne (ų)

178.929

Physical Properties

Hardness (Mohs)

7

Density (g/cm³)

7.88

7.751 ( ρ calc. Mineralienatlas )

References

American Mineralogist 74 (1989), 1215.

Other languages

German

Iridisit

English

Iridisite

Alternative Name

Spanish

Iridisita

Simplified Chinese

硫铱矿