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Shuangfengite (Shuangfengit)

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

Volume (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

IDs

GUSID (Global unique identifier short form) xFllDNrKsUampeumygVyvQ
GUID (Global unique identifier) 0C6559C4-CADA-46B1-A6A5-EBA6CA0572BD
Database ID 3508