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Shuangfengite

Additional Functions

Collectors Summary

Color schwarz
Streak color schwarz
Hardness (Mohs) 3
Cleavages vollkommen {0001}
Fracture keiner
Crystal System trigonal, P3m1

Chemism

Chem­ical formula

IrTe2

Chem­ical com­po­si­tion

Iridium, Tellur

Unit weight: 447.4233 u; Number of atoms in the formula: 3

Info

Empirical formula:

IrTe2

Element

Symbol

Weight%

Atoms

Atoms%

Atom weight (u)

Sum weight (u)

Tellurium

Te

57.04

2

66.67

127.6030000

255.2060000

Iridium

Ir

42.96

1

33.33

192.2173000

192.2173000

Anal­y­sis wt%

Ir : 40.30, Pt : 1.20, Te : 56.70, Bi : 0.40, PLT : 41.60 (Ref: American Mineralogist S94)

Strunz 9th edi­tion incl. updates

2.EA.20

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
20:Melonit-Gruppe

Lapis Clas­sifica­tion

II/D.28-045

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

Clas­sifica­tion by Hölzel

2.EA.390

2: SULFIDES
E: Me/S=1/2 (also < 1/2)
A: Me/S=1/2 with Cu,Ag,Au, etc.
3: With Ni,Sn,Pd,Pt, etc. - Melonite-Group

Dana 8th edi­tion

02.12.14.06

02: Sulfide Minerals
12: Sulfides - Including Selenides and Tellurides where Am Bn Xp, with (m+n):p=1:2
14: Melonite Group (Trigonal: P-3m1) AX2 type

IMA sta­tus

Anerkannt von der CNMNC

Min­eral sta­tus

anerkanntes Mineral

Optical Properties

Color

schwarz

Streak color

schwarz

Crystallography

Crystal Sys­tem

trigonal

Class (H-M)

3m

Space Group number

164

Space Group

P3m1

Cell param­e­ters a (Å)

3.933

Cell param­e­ters b (Å)

-

Cell param­e­ters c (Å)

5.390

Cell param­e­ters a/b or c/a

1.370

Cell param­e­ters c/b

-

Z

1

Volumne (ų)

72.205

X-Ray Pow­der Diffrac­tion

2.85(100),
2.10(80),
1.95(60),
1.580(70),
1.435(50),
1.250(50),
1.160(60),
1.110(70)

XRD chart Shuangfengite

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

Crystal Structure 3D

Open larger view

Physical Properties

Hard­ness (Mohs)

3

VHN (Hard­ness Vick­ers)

108 (20g)

Density (g/cm³)

10.14 (berechnet)

10.289 ( ρ calc. Mineralienatlas )

Cleav­ages

vollkommen {0001}

Frac­ture

keiner

Tenac­ity

spröde

Preface

Author (Name, Year)

Yu Zuxiang, 1994

References

Acta Mineralogica Sinica (in Chinese) 14 (4) (1994), 322

Other languages

German

Shuangfengit

Spanish

Shuangfengita

English

Shuangfengite

French

Shuangfengite

Russian

Шуанфенит

Japanese

シュアングフェンガイト

CNMNC (IMA)-Number

IMA 1993-018

CNMNC symbol

Symbol

Sfg

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