Cuproiridsite Mineral Data

Cuproiridsite Mineral Data

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General Cuproiridsite Information

Chemical Formula:

CuIr2S4

Composition:

Molecular Weight = 576.25 gm

Copper 11.03 % Cu

Iridium 66.71 % Ir

Sulfur 22.26 % S

______

100.00 %

Empirical Formula:

CuIr₂S₄

Environment:

In alluvial deposits.

IMA Status:

Approved IMA 1985

Locality:

From undefined localities in the Aldan Shield and Kamchatka, Far Eastern Region, USSR. Link to MinDat.org Location Data.

Name Origin:

For the chemical composition.

Synonym:

ICSD 75531

PDF 39-329

Cuproiridsite Image

Images:

Click Here for Larger Cuproiridsite Image

Cuproiridsite Isoferroplatinum

Comments: Gray equant crystal of cuproiridsite in light gray isoferroplatinum. Polished section (from microprobe analysis) in reflected light.
Location: Konder Mine, Konder alkaline-ultrabasic massif, Aldan shield, Saha (Sakha) Republic (Yakutia), Eastern-Siberian Region, Russia. Scale: Picture size 0.14 mm.
© Thomas Witzke / Abraxas-Verlag

Cuproiridsite Crystallography

Cell Dimensions:

a = 9.92, Z = 8; V = 976.19 Den(Calc)= 7.84

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): 1.76(1), 3(1), 2.489(0.9),

Crystal Structure:

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Furubayashi T , Matsumoto T , Hagino T , Nagata S , Journal of the Physical Society of Japan , 63 (1994) p.3333-3339, Structural and magnetic studies of metal-insulator transition in thiospinel CuIr2S4, Sample: T = 10 K, low temperature form

View Additional jPOWD Structure files for Cuproiridsite
[1]

Physical Properties of Cuproiridsite

Color:

Iron black, Black.

Density:

7.24

Diaphaniety:

Opaque

Hardness:

5-6 - Between Apatite and Orthoclase

Luster:

Metallic

Streak:

ingen

Optical Properties of Cuproiridsite

RL Color:

Gray.

Reflectivity

**Standardized Intensity (100%) Reflection Spectra of Cuproiridsite in Air**
λ	R₁	R₂	∑ R₁(λ)	∑ R₂(λ)
460 nm	35.00	37.50
480 nm	34.40	37.20
500 nm	34.00	37.10
520 nm	34.00	37.10
540 nm	33.60	37.20
560 nm	33.40	37.20
580 nm	33.10	37.50
600 nm	32.80	37.70
620 nm	32.60	37.80
640 nm	32.40	37.80
660 nm	32.20	37.80
680 nm	32.10	38.10
700 nm	32.00	38.40

**Calculated Relative Intensity Colors of Cuproiridsite in Air**
Relative Intensity	0%	30%	60%	90%	100%	120%	150%	180%	210%	240%	270%
R₁
R₂

Calculated Properties of Cuproiridsite

Electron Density:

r_electron=6.72 gm/cc
note: r_{Cuproiridsite}=7.84 gm/cc.

Fermion Index

Fermion Index = 0.00166
Boson Index = 0.99834

Photoelectric:

PE_{Cuproiridsite}= 970.92 barns/electron
U=PE_{Cuproiridsite} x r_electron=6,525.51 barns/cc.

Radioactivity:

GRapi = 0 (Gamma Ray American Petroleum Institute Units)

Cuproiridsite is Not Radioactive

Cuproiridsite Classification

Dana Class:

2.10.1.15 (2)Sulfides - Including Selenides and Tellurides

(2.10)where Am Bn Xp, with (m+n):p=3:4

(2.10.1)Linnaeite Group (Isometric: Fd3m)

2.10.1.1 Linnaeite CoCo2S4 F d3m 4/m 3 2/m

2.10.1.2 Carrollite Cu(Co,Ni)2S4 F d3m 4/m 3 2/m

2.10.1.3 Fletcherite Cu(Ni,Co)2S4 F d3m 4/m 3 2/m

2.10.1.4 Tyrrellite (Cu,Co,Ni)3Se4 F d3m 4/m 3 2/m

2.10.1.5 Bornhardtite CoCo2Se4 F d3m 4/m 3 2/m

2.10.1.6 Siegenite (Ni,Co)3S4 F d3m 4/m 3 2/m

2.10.1.7 Polydymite NiNi2S4 F d3m 4/m 3 2/m

2.10.1.8 Violarite FeNi2S4 F d3m 4/m 3 2/m

2.10.1.9 Trustedtite Ni3Se4 F d3m 4/m 3 2/m

2.10.1.10 Greigite FeFe2S4 F d3m 4/m 3 2/m

2.10.1.11 Daubreelite FeCr2S4 F d3m 4/m 3 2/m

2.10.1.12 Indite FeIn2S4 F d3m 4/m 3 2/m

2.10.1.13 Kalininite ZnCr2S4 F d3m 4/m 3 2/m

2.10.1.14 Florensovite Cu(Cr1.5Sb0.5)S4 F d3m 4/m 3 2/m

2.10.1.15 Cuproiridsite CuIr2S4 F d3m 4/m 3 2/m

2.10.1.16 Cuprorhodsite CuRh2S4 F d3m 4/m 3 2/m

2.10.1.17 Malanite Cu(Pt,Ir)2S4 F d3m 4/m 3 2/m

2.10.1.18 Ferrorhodsite (Fe,Cu)(Rh,Ir,Pt)2S4 F d3m 4/m 3 2/m

2.10.1.19 Cadmoindite! CdIn2S4 F d3m 4/m 3 2/m

Strunz Class:

II/D.02-30 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 Cuproiridsite Information

References:

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

See Also:

Links to other databases for Cuproiridsite :
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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Cuproiridsite

CuIr2S4
Dana No: 2.10.1.15 Strunz No: II/D.02-30
Locality:

Notes: