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Tongxinite

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

Volumne (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 )

(Co-)Type locality

(Co-)Type locality

China/Tibet (Xizang AR)/Qamdo, Präfektur/Jomdo, Kreis/Yulong

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