Chalcopyrite Mineral Data + Say CHALCOPYRITE

General Chalcopyrite Information

Help on Chemical  Formula: Chemical Formula: CuFeS2
Help on Composition: Composition: Molecular Weight = 183.53 gm
   Iron    30.43 %  Fe
   Copper  34.63 %  Cu
   Sulfur  34.94 %  S
          ______ 
          100.00 % 
Help on Empirical Formula: Empirical Formula: CuFe2+S2
Help on Environment: Environment: Common in sulfide veins and disseminated in igneous rocks.
Help on IMA Status: IMA Status: Valid Species (Pre-IMA) 1747
Help on Locality: Locality: Numerous localities world wide. The most economically important mineral in porphyry copper deposits. Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: From the Greek, chalkos, "copper" hence "Copper Pyrite."
Help on Synonym: Synonym: ICSD 2518
  PDF 35-752
 

Chalcopyrite Image

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Chalcopyrite   Quartz

Comments: Well-formed crystals of chalcopyrite and quartz.
Location: Boldut mine, 61 level (350 meters deep), Cavnic, Maramures, Rumania. Scale: 5.5 x 3.5 cm.
© Fabre Minerals

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Chalcopyrite   Moncheite

Comments: White moncheite with chalcopyrite (orange, blue and violet tarnishing colors) in silicate matrix. Polished section (from microprobe analysis) in reflected light.
Location: Lukkulaisvaara ultrabasic Massif, Olanga (Oulanka) River, Oulanka plutonic complex, Karelia Republic, Northern Region, Russia. Scale: Picture size 0.11 mm.
© Thomas Witzke / Abraxas-Verlag

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Chalcopyrite   Oulankaite   Telargpalite   Tulameenite

Comments: Gray long-prismatic crystal of oulankaite with light grayish telargpalite and pale yellowish-white rims of tulameenite in massive yellowish chalcopyrite. Polished section (from microprobe analysis) in reflected light.
Location: Lukkulaisvaara ultrabasic Massif, Olanga (Oulanka) River, Oulanka plutonic complex, Karelia Republic, Northern Region, Russia. Scale: Picture size 0.12 mm.
© Thomas Witzke / Abraxas-Verlag

Chalcopyrite Crystallography

Help on Axial Ratios: Axial Ratios: a:c = 1:1.97159
Help on Cell Dimensions: Cell Dimensions: a = 5.28, c = 10.41, Z = 4; V = 290.21 Den(Calc)= 4.20
Help on Crystal System: Crystal System: Tetragonal - ScalenohedralH-M Symbol (4 2m) Space Group: I 42d
Help on X Ray Diffraction: X Ray Diffraction: By Intensity(I/Io): 3.03(1), 1.854(0.8), 1.591(0.6),
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Hall S R , Stewart J M , Acta Crystallographica, Section B , 29 (1973) p.579-585, The crystal structure refinement of chalcopyrite, CuFeS2

 

Physical Properties of Chalcopyrite

Help on Cleavage: Cleavage: [112] Indistinct
Help on Color: Color: Brass yellow, Honey yellow.
Help on Density: Density: 4.1 - 4.3, Average = 4.19
Help on Diaphaniety: Diaphaniety: Opaque
Help on Fracture: Fracture: Brittle - Generally displayed by glasses and most non-metallic minerals.
Help on Habit: Habit: Druse - Crystal growth in a cavity which results in numerous crystal tipped surfaces.
Help on Habit: Habit: Euhedral Crystals - Occurs as well-formed crystals showing good external form.
Help on Habit: Habit: Striated - Parallel lines on crystal surface or cleavage face.
Help on Hardness: Hardness: 3.5 - Copper Penny
Help on Luminescence: Luminescence: None.
Help on Luster: Luster: Metallic
Help on Magnetism: Magnetism: Magnetic after heating
Help on Streak: Streak: greenish black
 

Optical Properties of Chalcopyrite

Help on RL Anisotrophism: RL Anisotrophism: Weak.
Help on Reflectivity Reflectivity
Standardized Intensity (100%) Reflection Spectra of Chalcopyrite in Air
λ R1 R2  ∑ R1(λ)   ∑ R2(λ) 
 400 nm   12.60   14.80 
   
 420 nm   16.30   18.00 
 440 nm   20.00   21.20 
 460 nm   23.60   25.00 
 480 nm   27.00   28.60 
 500 nm   30.20   31.70 
 520 nm   33.00   34.30 
 540 nm   35.10   36.40 
 560 nm   36.80   38.00 
 580 nm   38.20   39.30 
 600 nm   39.30   40.40 
 620 nm   40.10   41.00 
 640 nm   40.70   41.60 
 660 nm   41.10   41.90 
 680 nm   41.40   42.00 
 700 nm   41.40   41.80 
Calculated Relative Intensity Colors of Chalcopyrite in Air
Relative
Intensity
   0%   50% 100% 150% 200% 250% 300% 350% 400% 420%
R1                    
R2                    
 

Calculated Properties of Chalcopyrite

Help on Electron Density: Electron Density:

relectron=3.98 gm/cc
note: rChalcopyrite =4.20 gm/cc.

Help on Fermion Index Fermion Index Fermion Index = 0.00907
Boson Index = 0.99093
Help on Photoelectric: Photoelectric:

PEChalcopyrite = 26.59 barns/electron
U=PEChalcopyrite x relectron= 105.88 barns/cc.

Help on Radioactivity: Radioactivity: GRapi = 0 (Gamma Ray American Petroleum Institute Units)

Chalcopyrite is Not Radioactive

 

Chalcopyrite Classification

Help on  Dana Class: Dana Class: 2.9.1.1 (2)Sulfides - Including Selenides and Tellurides
  (2.9)where Am Bn Xp, with (m+n):p=1:1
  (2.9.1)Chalcopyrite Group (Tetragonal: I4¯2d)
 
2.9.1.1 Chalcopyrite CuFeS2 I 42d 4 2m
 
2.9.1.2 Eskebornite CuFeSe2 I 42d 4 2m
 
2.9.1.3 Gallite CuGaS2 I 42d 4 2m
 
2.9.1.4 Roquesite CuInS2 I 42d 4 2m
 
2.9.1.5 Lenaite AgFeS2 I 42d 4 2m
 
2.9.1.6 Laforetite! AgInS2 I 42d 4 2m
Help on  Strunz Class: Strunz Class: II/C.03-10 II - Sulfides and sulphosalts
  II/C - Sulfides with metal: sulfur, selenium and tellurium = 1:1
  II/C.03 - Chalcopyrite group and related compounds
 
II/C.03-10 Chalcopyrite CuFeS2 I 42d 4 2m
 
II/C.03-20 Eskebornite CuFeSe2 I 42d 4 2m
 
II/C.03-25 Lenaite AgFeS2 I 42d 4 2m
 
II/C.03-30 Gallite CuGaS2 I 42d 4 2m
 
II/C.03-40 Roquesite CuInS2 I 42d 4 2m
 
II/C.03-50 Laforetite! AgInS2 I 42d 4 2m
 

Other Chalcopyrite Information

Help on References: References: NAME( Sinkankas66) PHYS. PROP.(Enc. of Minerals,2nd ed.,1990) OPTIC PROP.(AntBidBlaNic1)
Help on See Also: See Also: Links to other databases for Chalcopyrite :
1 - Alkali-Nuts(English) 2 - Alkali-Nuts(Francais) 3 -Am. Min. Crystal Structure Database 4 - Amethyst Galleries' Mineral Gallery 5 - Applied Mineralogy 6 -Athena 7 - Crocoite.com Mineral Locations 8 - EUROmin Project 9 - Franklin Minerals(Dunn) 10 - Franklin Minerals(Palache) 11 - Glendale Community College 12 -Google Images 13 -Google Scholar 14 -Handbook of Mineralogy (UofA) 15 - HyperPhysics 16 -MinDAT 17 -MinMax(Deutsch) 18 -MinMax(English) 19 - Mineral and Gemstone Kingdom 20 -Mineralienatlas (Deutsch) 21 - Minerals of Wisconsin 22 - Philatelic Mineralogy 23 -QUT Mineral Atlas 24 - Scandinavian mineral gallery 25 - University of Manchester - Mineral Structure 26 -University of Minnesota 27 - WWW-MINCRYST 28 -École des Mines de Paris

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Chalcopyrite

CuFeS2
Dana No: 2.9.1.1 Strunz No: II/C.03-10
Locality:

 

Notes:

 

 
   
 
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