Xingzhongite Mineral Data

Xingzhongite Mineral Data +

General Xingzhongite Information

Chemical Formula:

(Pb,Cu,Fe)(Ir,Pt,Rh)2S4

Composition:

Molecular Weight = 645.53 gm

Iron 0.87 % Fe

Copper 2.95 % Cu

Iridium 35.73 % Ir

Platinum 18.13 % Pt

Rhodium 3.19 % Rh

Lead 19.26 % Pb

Sulfur 19.87 % S

______

100.00 %

Empirical Formula:

Pb_0.6Cu_0.3Fe²⁺_0.1Ir_1.2Pt_0.6Rh_0.2S₄

Environment:

In dunite-hosted platinum ores, related to chromium mineralization.

IMA Status:

Approved IMA 1974

Locality:

China. Link to MinDat.org Location Data.

Name Origin:

Named for the unspecified locality.

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Xingzhongite Crystallography

Cell Dimensions:

a = 9.97, Z = 6; V = 991.03 Den(Calc)= 6.49

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): 1.765(1), 3(0.8), 5.8(0.8),

Physical Properties of Xingzhongite

Cleavage:

[0001] Distinct

Color:

Steel gray.

Density:

6.64

Diaphaniety:

Opaque

Hardness:

6 - Orthoclase

Luster:

Metallic

Optical Properties of Xingzhongite

RL Color:

Bluish gray.

Reflectivity

**Standardized Intensity (100%) Reflection Spectra of Xingzhongite in Air**
λ	R	∑ R(λ)
466 nm	40.50
544 nm	38.90
589 nm	41.10
656 nm	41.00

**Calculated Relative Intensity Colors of Xingzhongite in Air**
Relative Intensity	0%	30%	60%	90%	100%	120%	150%	180%	210%	220%
R

Calculated Properties of Xingzhongite

Electron Density:

r_electron=5.48 gm/cc
note: r_Xingzhongite=6.49 gm/cc.

Fermion Index

Fermion Index = 0.10552
Boson Index = 0.89448

Photoelectric:

PE_Xingzhongite=1,162.27 barns/electron
U=PE_Xingzhongite x r_electron=6,373.13 barns/cc.

Radioactivity:

GRapi = 0 (Gamma Ray American Petroleum Institute Units)

Xingzhongite is Not Radioactive

Xingzhongite Classification

Dana Class:

2.8.4.1 (2)Sulfides - Including Selenides and Tellurides

(2.8)where Am Bn Xp, with (m+n):p=1:1

(2.8.4)Dana Group

2.8.4.1 Xingzhongite (Pb,Cu,Fe)(Ir,Pt,Rh)2S4 F d3m 4/m 3 2/m

Strunz Class:

II/D.02-50 II - Sulfides and sulphosalts

II/D - Sulfides with metal: sulfur, selenium and tellurium < 1:1, Tellurides with Copper, Silver, Gold

II/D.02 - Dayingite - Xingzhongite series

II/D.02-10 Dayingite? CuCoPtS4 F m3m 4/m 3 2/m

II/D.02-20 Cuprorhodsite CuRh2S4 F d3m 4/m 3 2/m

II/D.02-30 Cuproiridsite CuIr2S4 F d3m 4/m 3 2/m

II/D.02-40 Malanite Cu(Pt,Ir)2S4 F d3m 4/m 3 2/m

II/D.02-45 Ferrorhodsite (Fe,Cu)(Rh,Ir,Pt)2S4 F d3m 4/m 3 2/m

II/D.02-50 Xingzhongite (Pb,Cu,Fe)(Ir,Pt,Rh)2S4 F d3m 4/m 3 2/m

Other Xingzhongite Information

References:

NAME( AntBidBlaNic1) PHYS. PROP.(Enc. of Minerals,2nd ed.,1990) OPTIC PROP.(AntBidBlaNic1)

See Also:

Links to other databases for Xingzhongite :
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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Xingzhongite

(Pb,Cu,Fe)(Ir,Pt,Rh)2S4
Dana No: 2.8.4.1 Strunz No: II/D.02-50
Locality:

Notes: