Isochalcopyrite Mineral Data

Isochalcopyrite Mineral Data

General Isochalcopyrite Information

Chemical Formula:

Cu8Fe9S16

Composition:

Molecular Weight = 1,524.05 gm

Iron 32.98 % Fe

Copper 33.36 % Cu

Sulfur 33.66 % S

______

100.00 %

Empirical Formula:

Cu₈Fe²⁺₉S₁₆

Environment:

Deep sea, anoxic sediments.

IMA Status:

Not Approved IMA

Locality:

Atlantis II Deep, Red Sea. Link to MinDat.org Location Data.

Synonym:

ICSD 24254

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Isochalcopyrite Crystallography

Crystal System:

IsometricSpace Group: Unk

Physical Properties of Isochalcopyrite

Color:

Yellow.

Diaphaniety:

Opaque

Luster:

Metallic

Calculated Properties of Isochalcopyrite

Fermion Index

Fermion Index = 0.00951
Boson Index = 0.99049

Photoelectric:

PE_{Isochalcopyrite}= 26.75 barns/electron
U=PE_{Isochalcopyrite} x r_electron= . barns/cc.

Radioactivity:

GRapi = 0 (Gamma Ray American Petroleum Institute Units)

Isochalcopyrite is Not Radioactive

Isochalcopyrite Classification

Dana Class:

2.0.0.0 (2)Sulfide Minerals

(2.0)Without Dana Classification Numbers

(Sulfide)

Strunz Class:

II/C.04-35 II - Sulfides and sulphosalts

II/C - Sulfides with metal: sulfur, selenium and tellurium = 1:1

II/C.04 - Chalcopyrite group, Mooihoekite - Orickite series

II/C.04-10 Mooihoekite Cu9Fe9S16 P 4₂m- 4 2m

II/C.04-20 Haycockite Cu4Fe5S8 P 222 2 2 2

II/C.04-30 Putoranite Cu1.1Fe1.2S2 P n3n 4/m 3 2/m

II/C.04-35 Isochalcopyrite Cu8Fe9S16 Unk Cubic

II/C.04-40 Talnakhite Cu9(Fe,Ni)8S16 I 43m 4 3m

II/C.04-50 Isocubanite CuFe2S3 F m3m 4/m 3 2/m

II/C.04-60 Orickite CuFeS2·(H2O) Unk Hex

Other Isochalcopyrite Information

References:

PHYS. PROP.(Am.Min.,Vol.75,p432,1990)

See Also:

Links to other databases for Isochalcopyrite :
1 -Am. Min. Crystal Structure Database 2 -Athena 3 - EUROmin Project 4 -Google Images 5 -Google Scholar 6 -MinDAT 7 -MinMax(Deutsch) 8 -MinMax(English) 9 -Mineralienatlas (Deutsch) 10 -QUT Mineral Atlas 11 -École des Mines de Paris

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Isochalcopyrite

Cu8Fe9S16
Dana No: Unknown Strunz No: II/C.04-35
Locality:

Notes: