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Tongbaite (Tongbait)

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Tongbait
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Tongbait
angeschliffenes, metallisches Aggregat von Tongbait in Epoxidharz, Verkhneivinsk, Fluss Neiva, Nizhnii Tagil, Swerdlowsk, Russland; BB < 1 mm, analysiert mittels REM-EDX
Copyright: MinTreasure.com (Carsten Slotta); Contribution: openpit
Location: Russland/Ural, Föderationskreis/Swerdlowsk, Oblast (Sverdlovskaya)/Sysert (Syssertsk)/Neiva, Fluss/Verkhneivinsk
Mineral: Tongbaite
Image: 1637342417
License: Usage for Mineralienatlas project only
Tongbait  E
Analysed with energy dispersive X-ray spectroscopy EDX

angeschliffenes, metallisches Aggregat von Tongbait in Epoxidharz, Verkhneivinsk, Fluss Neiva, Nizhnii Tagil, Swerdlowsk, Russland; BB < 1 mm, analysiert mittels REM-EDX
Copyright: MinTreasure.com (Carsten Slotta)
Contribution: openpit 2021-11-19
Locality: Verkhneivinsk / Neiva, Fluss / Sysert (Syssertsk) / Swerdlowsk, Oblast (Sverdlovskaya) / Ural, Föderationskreis / Russland

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

(Co-)Type locality

(Co-)Type locality

China/Henan, Provinz/Nanyang, Präfektur/Tongbai, Kreis/Liu, Dorf

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.

Other languages

German

Tongbait

French

Tongbaite

English

Tongbaite

Spanish

Tongbaíta

Russian

Тонгбаит

Simplified Chinese

桐柏矿

CNMNC (IMA)-Number

IMA 1982-003

CNMNC symbol

Symbol

Tgb

Locations with GPS information