Iridisite Mineral Data

Iridisite Mineral Data

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General Iridisite Information

Chemical Formula:

(Ir,Cu,Rh,Ni,Pt)S2

Composition:

Molecular Weight = 186.82 gm

Copper 10.20 % Cu

Nickel 3.14 % Ni

Iridium 30.87 % Ir

Platinum 10.44 % Pt

Rhodium 11.02 % Rh

Sulfur 34.33 % S

______

100.00 %

Empirical Formula:

Ir_0.3Cu_0.3Rh_0.2Ni_0.1Pt_0.1S₂

IMA Status:

Not Approved IMA

Locality:

Link to MinDat.org Location Data.

Search for Iridisite Images

Images:

Image not yet available on Webmineral.com

Try searching images.google.com or Mindat Picture Gallary for mineral pictures. Caution: The images retrieved may not be appropriate.

Iridisite Crystallography

Cell Dimensions:

a = 5.635, Z = 8; V = 178.93 Den(Calc)= 13.87

Crystal System:

IsometricSpace Group: Unk

Physical Properties of Iridisite

Color:

Steel gray.

Diaphaniety:

Opaque

Hardness:

7 - Quartz

Luster:

Metallic

Streak:

black

Calculated Properties of Iridisite

Electron Density:

r_electron=12.4 gm/cc
note: r_Iridisite=13.9 gm/cc.

Fermion Index

Fermion Index = 0.03822
Boson Index = 0.96178

Photoelectric:

PE_Iridisite= 612.17 barns/electron
U=PE_Iridisite x r_electron=7,580.85 barns/cc.

Radioactivity:

GRapi = 0 (Gamma Ray American Petroleum Institute Units)

Iridisite is Not Radioactive

Iridisite Classification

Dana Class:

2.0.0.0 (2)Sulfide Minerals

(2.0)Without Dana Classification Numbers

(Sulfide)

Strunz Class:

II/D.29-30 II - Sulfides and sulphosalts

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

II/D.29 - Skutterudite - Iridisite series

II/D.29-10 Skutterudite (Co,Ni)As3-x I m3 2/m 3

II/D.29-20 Nickel-skutterudite (Ni,Co)As3-x I m3 2/m 3

II/D.29-25 Kieftite CoSb3 I m3 2/m 3

II/D.29-30 Iridisite (Ir,Cu,Rh,Ni,Pt)S2 Unk Cubic

II/D.29-40 Gaotaiite Ir3Te8 P a3 2/m 3

Other Iridisite Information

References:

PHYS. PROP.(Am.Min.,Vol.81,1996)

See Also:

Links to other databases for Iridisite :
1 -Am. Min. Crystal Structure Database 2 -Athena 3 -Google Images 4 -Google Scholar 5 -MinDAT 6 -MinMax(Deutsch) 7 -MinMax(English) 8 -Mineralienatlas (Deutsch) 9 -QUT Mineral Atlas

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

Iridisite

(Ir,Cu,Rh,Ni,Pt)S2
Dana No: Unknown Strunz No: II/D.29-30
Locality:

Notes: