Hunchunite Mineral Data

General Hunchunite Information

Chemical Formula:

(Au,Ag)2Pb

Composition:

Molecular Weight = 556.58 gm

Silver 9.69 % Ag

Lead 37.23 % Pb

Gold 53.08 % Au

______

100.00 %

Empirical Formula:

Au_1.5Ag_0.5Pb

IMA Status:

Approved IMA 1996 (Dana # Added)

Locality:

Hunchun River, Jilin province, China Link to MinDat.org Location Data.

Name Origin:

Named after the locality.

Name Pronunciation:

Hunchunite + Pronunciation

Synonym:

ICSD 56261

IMA1991-033

PDF 46-1404

Hunchunite Image

Images:

Hunchunite

Comments: Bluish-gray hunchunite in a polished section in reflected light.
Location: Nizhne-Tagil'skoye (Mednorudyanskoye) Cu Deposit, Nizhnii Tagil, Sverdlovskaya Oblast', Urals Region, Russia. Scale: Picture size 0.2 mm.
© Thomas Witzke / Abraxas-Verlag

Hunchunite Crystallography

Cell Dimensions:

a = 7.933, Z = 8; V = 499.24 Den(Calc)= 14.81

Crystal System:

Isometric - HexoctahedralH-M Symbol (4/m 3 2/m) Space Group: F d3m

$Help on X Ray Diffraction:$ X Ray Diffraction:

By Intensity(I/I_o): 2.391(1), 2.81(0.3), 1.196(0.26),

Physical Properties of Hunchunite

Color:

Lead gray, Silver gray.

Density:

Diaphaneity:

Opaque

Hardness:

3.5 - Copper Penny

Luster:

Metallic

Calculated Properties of Hunchunite

Electron Density:

Bulk Density (Electron Density)=11.9 gm/cc
note: Specific Gravity of Hunchunite =14.8 gm/cc.

Fermion Index:

Fermion Index = 0.08
Boson Index = 0.92

Photoelectric:

PE_Hunchunite=1,634.55 barns/electron
U=PE_Hunchunite x rElectron Density=19485.06 barns/cc.

Radioactivity:

GRapi = 0 (Gamma Ray American Petroleum Institute Units)
Hunchunite is Not Radioactive

Hunchunite Classification

Dana Class:

01.01.04.02 (01)Native Elements

(01.01)with metallic elements other than the platinum group

(01.01.04)Anyuiite and related alloys

01.01.04.01 Anyuiite Au(Pb,Sb)2 I 4/mcm 4/m 2/m 2/m

01.01.04.02 Hunchunite! (Au,Ag)2Pb F d3m 4/m 3 2/m

01.01.04.03 Novodneprite! AuPb3 I 4/2m 4/m

Strunz Class:

01.AA.25 01 - ELEMENTS (Metals and intermetallic alloys; metalloids and nonmetals; carbides, silicides, nitrides, phosphides)

01.A - Metals and Intermetallic Alloys

01.AA -Copper-cupalite family

01.AA.25 Hunchunite! (Au,Ag)2Pb F d3m 4/m 3 2/m

Other Hunchunite Information

References:

PHYS. PROP.(37th List of New Min.,Min. Mag.,1996)

See Also:

Links to other databases for Hunchunite :
1 - Am. Min. Crystal Structure Database
2 - Athena
3 - EUROmin Project
4 - Ecole des Mines de Paris
5 - GeoScienceWorld
6 - Google Images
7 - Google Scholar
8 - Handbook of Mineralogy (MinSocAm)
9 - Handbook of Mineralogy (UofA)
10 - MinDAT
11 - Mineralienatlas (Deutsch)
12 - Online Mineral Museum
13 - QUT Mineral Atlas
14 - Ruff.Info

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Ask about Hunchunite here :
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Print or Cut-and-Paste your Hunchunite Specimen Label here :

Hunchunite

(Au,Ag)2Pb
Dana No: 01.01.04.02 Strunz No: 01.AA.25
Locality:

Notes: