Mineralogy Database

Hunchunite Mineral Data

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General Hunchunite Information

Help on Chemical  Formula: Chemical Formula: (Au,Ag)2Pb
Help on Composition: Composition: Molecular Weight = 556.58 gm
   Silver   9.69 %  Ag
   Lead    37.23 %  Pb
   Gold    53.08 %  Au
          100.00 % 
Help on Empirical Formula: Empirical Formula: Au1.5Ag0.5Pb
Help on IMA Status: IMA Status: Approved IMA 1996 (Dana # Added)
Help on Locality: Locality: Hunchun River, Jilin province, China Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: Named after the locality.
Help on Name Pronunciation: Name Pronunciation: Hunchunite + Pronunciation Say HUNCHUNITE
Help on Synonym: Synonym: ICSD 56261
  PDF 46-1404

Hunchunite Image

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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

Help on Cell Dimensions: Cell Dimensions: a = 7.933, Z = 8; V = 499.24 Den(Calc)= 14.81
Help on Crystal System: Crystal System: Isometric - Hexoctahedral H-M Symbol (4/m 3 2/m) Space Group: F d3m
Help on X Ray Diffraction: X Ray Diffraction: By Intensity(I/Io): 2.391(1), 2.81(0.3), 1.196(0.26),

Physical Properties of Hunchunite

Help on Color: Color: Lead gray, Silver gray.
Help on Density: Density: 16
Help on Diaphaneity: Diaphaneity: Opaque
Help on Hardness: Hardness: 3.5 - Copper Penny
Help on Luster: Luster: Metallic

Calculated Properties of Hunchunite

Help on Electron Density: Electron Density: Bulk Density (Electron Density)=11.9 gm/cc
note: Specific Gravity of Hunchunite =14.8 gm/cc.
Help on Fermion Index: Fermion Index: Fermion Index = 0.08
Boson Index = 0.92
Help on Photoelectric: Photoelectric: PEHunchunite =1,634.55 barns/electron
U=PEHunchunite x rElectron Density=19485.06 barns/cc.
Help on Radioactivity: Radioactivity: GRapi = 0 (Gamma Ray American Petroleum Institute Units)
Hunchunite is Not Radioactive

Hunchunite Classification

Help on  Dana Class: Dana Class: (01)Native Elements
  (01.01)with metallic elements other than the platinum group
  (01.01.04)Anyuiite and related alloys Anyuiite Au(Pb,Sb)2 I 4/mcm 4/m 2/m 2/m Hunchunite! (Au,Ag)2Pb F d3m 4/m 3 2/m Novodneprite! AuPb3 I 4/2m 4/m
Help on  Strunz Class: 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

Help on References: References: PHYS. PROP.(37th List of New Min.,Min. Mag.,1996)
Help on See Also: 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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Dana No: Strunz No: 01.AA.25





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