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Tongbaite

Collectors Summary

Color bräunlichgelb-met.
Streak color dunkelgrau
Lustre Metallglanz
Hardness (Mohs) 8.5
Solubility + kochende konz. HClO4, - Königswasser, HNO3, H2SO4
Crystal System orthorhombisch, Pnma

Chemism

Chem­ical formula

Cr3C2

Chem­ical com­po­si­tion

Chrom, Kohlenstoff

Unit weight: 180.01004 u; Number of atoms in the formula: 5

Info

Empirical formula:

Cr3C2

Element

Symbol

Weight%

Atoms

Atoms%

Atom weight (u)

Sum weight (u)

Carbon

C

13.34

2

40.00

12.0107800

24.0215600

Chromium

Cr

86.66

3

60.00

51.9961600

155.9884800

Strunz 9th edi­tion incl. updates

1.BA.15

1: Elemente (Metalle, intermetallische Legierungen, Metalloide u. Nichtmetalle, Carbide, Silicide, Nitride u. Phosphide)
B: Metallische Kohlenstoffverbindungen (Carbide), Strickstoffverbindungen (Nitride) und Phosphorverbindungen (Phosphide)
A: Carbide
15:Tongbait-Gruppe

Lapis Clas­sifica­tion

I/A.09-030

I: ELEMENTE
A: Metalle und intermetallische Verbindungen
9: Carbide, Nitride, Phosphide und Silicide (metallartige Verbindungen)

Clas­sifica­tion by Hölzel

1.BA.200

1: ELEMENTS
B: Carbides, Silicides, Phosphides, Nitrides
A: Carbides

Hey's Chem­ical Index of Min­er­als

02.04

02: Carbides, Nitrides, Silicides and Phosphides

Dana 8th edi­tion

01.01.17.01

01: Native Elements and Alloys
01: Native Elements with metallic elements other than the platinum group

IMA sta­tus

Anerkannt von der CNMNC

Min­eral sta­tus

anerkanntes Mineral

Optical Properties

Color

bräunlichgelb-met.

Streak color

dunkelgrau

Diaphane­ity (Trans­parency)

opak

Lus­tre

Metallglanz

Crystallography

Crystal Sys­tem

orthorhombisch

Class (H-M)

mmm

Space Group number

62

Space Group

Pnma

Cell param­e­ters a (Å)

5.57

Cell param­e­ters b (Å)

11.47

Cell param­e­ters c (Å)

2.816

Cell param­e­ters a/b or c/a

0.486

Cell param­e­ters c/b

0.246

Cell param­e­ters α

90°

Cell param­e­ters β

90°

Cell param­e­ters γ

90°

Z

4

Volumne (ų)

179.908

X-Ray Pow­der Diffrac­tion

2.30(100),
2.23(80),
1.94(30),
1.86(30),
1.81(30),
1.70(40),
1.193(70),
1.164(30)

XRD chart Tongbaite

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

Crystals 3D

Open larger view

Crystal Structure 3D

Open larger view

Physical Properties

Hard­ness (Mohs)

8.5

VHN (Hard­ness Vick­ers)

1931 (50g)

Density (g/cm³)

6.66 (berechnet)

6.646 ( ρ calc. Mineralienatlas )

Insta­bil­ity

+ kochende konz. HClO4, - Königswasser, HNO3, H2SO4

Preface

Author (Name, Year)

Tian & Fang & Chen & Peng, 1983

References

Acta Chemica Scandinavica 23 (1969), 1191.

Acta Mineralogica Sinica (in chinesisch) 4 (1983), 241.

American Mineralogist 70 (1985), 218 (Zusammenfassung).

Acta Mineralogica Sinica (in chinesisch mit englischer Zusammenfassung) 24(1), 1-6.

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

Tongbaite

Cr3C2

orthorhombisch : mmm : Pnma

1.BA.15

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

'Hongquiite'

TiC

kubisch : m3m : Fm3m

I/A.09-010

Khamrabaevite

(Ti,V,Fe)C

kubisch : m3m : Fm3m

I/A.09-020

Tongbaite

Cr3C2

orthorhombisch : mmm : Pnma

I/A.09-030

Yarlongite

(Cr4Fe4Ni)C4

hexagonal : 6mm : P63mc

I/A.09-032

Isovite

(Cr,Fe)23C6

kubisch : m3m : Fm3m

I/A.09-035

Haxonite

(FeNi)23C6

I/A.09-040

Cohenite

(Fe,Ni,Co)3C

orthorhombisch : mmm : Pnma

I/A.09-050

Niobocarbide

(Nb,Ta)C

kubisch : m3m : Fm3m

I/A.09-055

Tantalcarbide

TaC

kubisch : m3m : Fm3m

I/A.09-060

Qusongite

WC

hexagonal : 6m2 : P6m2

I/A.09-070

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

Tongbaite

Cr3C2

orthorhombisch : mmm : Pnma

1.BA.200

Yarlongite

(Cr4Fe4Ni)C4

hexagonal : 6mm : P63mc

1.BA.240

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

Leadamalgam

Pb0.7Hg0.3

tetragonal : 4/mmm : I4/mmm

01.01.10.01

'Kamacite'

(Fe,Ni)

kubisch : m3m : Im3m

01.01.11.01

Taenite

(Ni,Fe)

kubisch : m3m : Fm3m

01.01.11.02

Tetrataenite

FeNi

monoklin : m : Pm

01.01.11.03

Awaruite

Ni3Fe

kubisch : m3m : Pm3m

01.01.11.04

Nickel

Ni

kubisch : m3m : Fm3m

01.01.11.05

Wairauite

CoFe

kubisch : m3m : Pm3m

01.01.11.06

Chromium

Cr

kubisch : m3m : Im3m

01.01.12.01

Chromferide

Fe1.5Cr0.2

kubisch : m3m : Pm3m

01.01.12.02

Ferchromide

Cr3Fe1-x

kubisch : m3m : Pm3m

01.01.12.03

Tin

Sn

tetragonal : 4/mmm : I41/amd

01.01.13.01

Indium

In

tetragonal : 4/mmm : I4/mmm

01.01.14.01

Cupalite

(Cu,Zn)Al

01.01.15.01

Khatyrkite

(Cu,Zn)Al2

tetragonal : 4/mmm : I4/mcm

01.01.15.02

Cohenite

(Fe,Ni,Co)3C

orthorhombisch : mmm : Pnma

01.01.16.01

Haxonite

(FeNi)23C6

01.01.16.02

Isovite

(Cr,Fe)23C6

kubisch : m3m : Fm3m

01.01.16.03

Tongbaite

Cr3C2

orthorhombisch : mmm : Pnma

01.01.17.01

Florenskyite

Fe(Ti,Ni)P

orthorhombisch : mmm : Pnma

01.01.17.02

'Siderazot'

Fe5N2

hexagonal : 6/mmm : P63/mmc

01.01.18.01

Roaldite

Fe4N

kubisch : m3m : Pm3m

01.01.18.02

Osbornite

TiN

kubisch : m3m : Fm3m

01.01.19.01

Khamrabaevite

(Ti,V,Fe)C

kubisch : m3m : Fm3m

01.01.19.02

Niobocarbide

(Nb,Ta)C

kubisch : m3m : Fm3m

01.01.19.03

Tantalcarbide

TaC

kubisch : m3m : Fm3m

01.01.19.04

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

Other languages

German

Tongbait

French

Tongbaite

English

Tongbaite

Spanish

Tongbaíta

Russian

Тонгбаит

Simplified Chinese

桐柏矿

IMA Number

IMA 1982-003

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

German pages

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

English pages

Mindat - search for: Tongbaite
Webmineral - search for:Tongbaite
Handbook-of-Mineralogy - search for: Tongbaite
RRUFF - Raman, XRD and other mineral data - search for: Tongbaite
RRUFF - References and PDF downloads - search for: Tongbaite
American-Mineralogist-Crystal-Structure-Database - search for: Tongbaite
Athena - search for: Tongbaite

Russian pages

Webmineral.ru - search for: Тонгбаит

Mineral Dealer

German pages

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

Locations with GPS information




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