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Tongxinite (Tongxinit)

Collectors Summary

Color golden
Lustre Metallglanz
Hardness (Mohs) 3.5
Crystal System kubisch,

Chemism

Chemical formula

Cu2Zn

Chemical composition

Kupfer, Zink

Unit weight: 192.502 u; Number of atoms in the formula: 3

Info

Empirical formula:

Cu2Zn

Element

Symbol

Weight%

Atoms

Atoms%

Atom weight (u)

Sum weight (u)

Copper

Cu

66.02

2

66.67

63.5463000

127.0926000

Zinc

Zn

33.98

1

33.33

65.4094000

65.4094000

Analysis wt%

Ø Cu : 67.57, Fe : 0.58, Zn : 33.48 (Ref: Acta Mineralogica Sinica 98)

Strunz 9th edition incl. updates

1.AB.10

1: Elemente (Metalle, intermetallische Legierungen, Metalloide u. Nichtmetalle, Carbide, Silicide, Nitride u. Phosphide)
A: Metalle und intermetallische Legierungen
B: Zink-Messing-Familie
10:Messing-Gruppe

Lapis Classification

I/A.04-018

I: ELEMENTE
A: Metalle und intermetallische Verbindungen

Classification by Hölzel

1.AC.162

1: ELEMENTS
A: Metals, Intermetallic Compounds, and Alloys
C: Zn-CuZn-Group

IMA status

übernommen ohne nähere Prüfung

Optical Properties

Color

golden

Lustre

Metallglanz

Anisotropism

isotropisch

Reflectivity: (Lambda nm) ↓, ↑, Ø

(470) 40.0, , 40.0
(546) 55.0, , 55.0
(589) 63.5, , 63.5
(650) 75.5, , 75.5

Reflection chart Tongxinite

Reflectivity Ø

58.5

Crystallography

Crystal System

kubisch

Cell parameters a (Å)

7.735

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

12

Volume (ų)

462.787

X-Ray Powder Diffraction

2.153(80),
2.101(100),
1.849(70),
1.815(70)

XRD chart Tongxinite

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

Physical Properties

Hardness (Mohs)

3.5

Density (g/cm³)

7.38 (berechnet)

8.288 ( ρ calc. Mineralienatlas )

Preface

Name from

Zusammensetzung; tong = Kupfer, xin = Zink

Author (Name, Year)

Shuai & Zhang & Luo & Zhang, 1998

References

American Mineralogist 85 (2000), 264 (Zusammenfassung).

Lang, Z., Shi, B., and Li, T. (1990): Genesis of copper deposit in Sanchakou, Hami, Xinjiang. Xinjiang Geology 8(3), 244-252 (in chinesisch).

Shuai, D., Zhang, R., Luo, M., et al. (1998): The study of natural Cu-Zn series mineral. Acta Mineralogica Sinica 18(4), 509-512 (in chinesisch).

Zhang, D., Wang, Y., Feng, C., et al. - Geology and geochemistry of Tuolugou Exhalative-Sedimentary Co-Au Deposit, Qinghai Province. Mineral Deposits Kuangchuang Dizhi 21(3) (2002), 213-222 (in chinesisch mit englischem Abstrakt).

Xie Yuling, Hou Zengqian, Xu Jiuhua, Yuan Zhongxin, Bai Ge, and Li Xiaoyu - Discovery of Cu-Zn, Cu-Sn intermetallic minerals and its significance for genesis of the Mianning-Dechang REE Metallogenic Belt, Sichuan Province, China. Science in China, Series D (Earth Sciences), 49 (6) (2006), 597-603

Other languages

German

Tongxinit

Spanish

Tongxinita

French

Tongxinite

English

Tongxinite

Russian

Тонгксинит

Simplified Chinese

铜锌矿

Locations with GPS information

IDs

GUSID (Global unique identifier short form) OZYw5SEQJUS43ORs9MM6QQ
GUID (Global unique identifier) E5309639-1021-4425-B8DC-E46CF4C33A41
Database ID 3878