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Hunchunite

Collectors Summary

Color bleigrau, silber grau
Hardness (Mohs) 3.5
Crystal System kubisch, Fd3m

Chemism

Chemical formula

Au2Pb

Chemical composition

Blei, Gold

Unit weight: 601.143104 u; Number of atoms in the formula: 3

Info

Empirical formula:

Au2Pb

Element

Symbol

Weight%

Atoms

Atoms%

Atom weight (u)

Sum weight (u)

Gold

Au

65.53

2

66.67

196.9665520

393.9331040

Lead

Pb

34.47

1

33.33

207.2100000

207.2100000

Analysis wt%

Ø Au : 64.78, Ag : 2.18, Pb : 32.91 (Ref: Acta Mineralogica Sinica 92)

Strunz 9th edition incl. updates

1.AA.25

1: Elemente (Metalle, intermetallische Legierungen, Metalloide u. Nichtmetalle, Carbide, Silicide, Nitride u. Phosphide)
A: Metalle und intermetallische Legierungen
A: Kupfer-Cupalit-Familie
25:Hunchunit-Gruppe

Lapis Classification

I/A.01-068

I: ELEMENTE
A: Metalle und intermetallische Verbindungen

Classification by Hölzel

1.AA.380

1: ELEMENTS
A: Metals, Intermetallic Compounds, and Alloys
A: Cu,Ag,Au-Group

Dana 8th edition

01.01.04.02

01: Native Elements and Alloys
01: Native Elements with metallic elements other than the platinum group
04: Anyuiite and related alloys

IMA status

Anerkannt von der CNMNC

Mineral status

anerkanntes Mineral

Optical Properties

Color

bleigrau, silber grau

Diaphaneity (Transparency)

opak

Crystallography

Crystal System

kubisch

Class (H-M)

m3m

Space Group number

227

Space Group

Fd3m

Cell parameters a (Å)

7.933

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

8

Volume (ų)

499.243

X-Ray Powder Diffraction

4.595(20),
2.810(30),
2.391(100),
2.301(20),
1.526(20),
1.402(20),
1.209(10),
1.196(30)

XRD chart Hunchunite

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

Physical Properties

Hardness (Mohs)

3.5

VHN (Hardness Vickers)

139 (5g)

Density (g/cm³)

16

15.995 ( ρ calc. Mineralienatlas )

Preface

Name from

Wu et al., 1992

Author (Name, Year)

Wu & Yang & Song, 1992

References

Wu Shangquan, Yang Yi, and Song Qun (1992): A new gold mineral - Hunchunite (Au2Pb). Acta Mineralogica Sinica 12 (4): 319-22 (in Chinese, English abstract). - New Minerals 1990-1994, 85 (abstract).

Strunz Mineralogical Tables 9.Edition (2001), 36.

IMA / CNMNC Liste, Strunz Id Änderung 1.AA.20 -> 1.AA.25

Other languages

German

Hunchunit

Spanish

Hunchunita

French

Hunchunite

English

Hunchunite

Russian

Хунчунит

Russian

Хуньчуньит

Simplified Chinese

珲春矿

Alternative Name

Simplified Chinese

铅金矿

CNMNC (IMA)-Number

IMA 1991-033

CNMNC symbol

Symbol

Hcn

Locations with GPS information

IDs

GUSID (Global unique identifier short form) X8eaWp-So0284SRMIIKncg
GUID (Global unique identifier) 5A9AC75F-929F-4DA3-BCE1-244C2082A772
Database ID 1646