Hunchunite Mineral Data

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.

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:

Diaphaniety:

Opaque

Hardness:

3.5 - Copper Penny

Luster:

Metallic

Calculated Properties of Hunchunite

Electron Density:

r_electron=11.9 gm/cc
note: r_Hunchunite=14.8 gm/cc.

Fermion Index

Fermion Index = 0.08227
Boson Index = 0.91773

Photoelectric:

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

Radioactivity:

GRapi = 0 (Gamma Ray American Petroleum Institute Units)

Hunchunite is Not Radioactive

Hunchunite Classification

Dana Class:

1.1.4.2 (1)Native Elements

(1.1)with metallic elements other than the platinum group

(1.1.4)Dana Group

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

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

Strunz Class:

I/A.01-68 I - Elements

I/A - Metallic and intermetallic compounds, Carbides, Nitrides, Phosphides and Silicides

I/A.01 - Series Copper, Silver and Gold

I/A.01-10 Copper Cu F m3m 4/m 3 2/m

I/A.01-15 Allabogdanite! (Fe,Ni)2P P nma 2/m 2/m 2/m

I/A.01-20 Silver Ag F m3m 4/m 3 2/m

I/A.01-40 Gold Au F m3m 4/m 3 2/m

I/A.01-50 Auricupride Cu3Au P m3m 4/m 3 2/m

I/A.01-60 Tetra-auricupride AuCu P 4/mmm 4/m 2/m 2/m

I/A.01-65 Bogdanovite (Au,Te,Pb)3(Cu,Fe) P m3m 4/m 3 2/m

I/A.01-68 Hunchunite (Au,Ag)2Pb F d3m 4/m 3 2/m

I/A.01-70 Anyuiite Au(Pb,Sb)2 I 4/mcm 4/m 2/m 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 -Google Images 5 -Google Scholar 6 -Handbook of Mineralogy (UofA) 7 -MinDAT 8 -MinMax(Deutsch) 9 -MinMax(English) 10 -Mineralienatlas (Deutsch) 11 -QUT Mineral Atlas 12 -École des Mines de Paris

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

Hunchunite

(Au,Ag)2Pb
Dana No: 1.1.4.2 Strunz No: I/A.01-68
Locality:

Notes: