Kupcikite Mineral Data

Kupcikite Mineral Data
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General Kupcikite Information

Help on Chemical Formula: Chemical Formula: Cu3.4Fe0.6Bi5S10
Help on Composition: Composition: Molecular Weight = 1,615.03 gm
   Cadmium    0.14 %  Cd
   Iron       2.07 %  Fe
   Copper    13.18 %  Cu
   Silver     0.07 %  Ag
   Bismuth   64.44 %  Bi
   Antimony   0.08 %  Sb
   Lead       0.13 %  Pb
   Sulfur    19.89 %  S
            ______ 
            100.00 % 
Help on Empirical Formula: Empirical Formula: Fe2+0.6Cu3.35Bi4.98Cd0.02Sb0.01Pb0.01Ag0.01S10.02
Help on Environment: Environment: Found in a scheelite deposit in quartz gangue. (cuprobismutite series; structure)
Help on IMA Status: IMA Status: Approved IMA 2003 (Dana # Added)
Help on Locality: Locality: Felbertal, Austria. Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: Named for Vladimir Kupcik (1934-1990), professor at the University of Bratislava and Gottingen in recognition of his contributions to the crystal chemistry of sulfosalts.
Help on Synonym: Synonym: IMA2001-017
 

Kupcikite Image

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Kupcikite   Cuprobismutite

Comments: Backscattered electron image of kupcíkite (ku) replacing cuprobismutite (cu); both phases are in turn replaced by bsimuthinite derivative (bd79-92).
Location: Felbertal, Austria. Scale: Scale bar 100 µ-m.
© Canadian Mineralogist

Kupcikite Crystallography
Help on Axial Ratios: Axial Ratios: a:b:c =4.4784:1:3.291
Help on Cell Dimensions: Cell Dimensions: a = 17.512, b = 3.9103, c = 12.869, Z = 2; beta = 108.56° V = 835.40 Den(Calc)= 6.42
Help on Crystal System: Crystal System: Monoclinic - PrismaticH-M Symbol (2/m) Space Group: C 2/m
Help on X Ray Diffraction: X Ray Diffraction: By Intensity(I/Io): 3.128(1)(112), 3.071(0.7)(312), 3.596(0.7)(401),2.683(0.48)(113), 3.239(0.44), 3.123(0.4)(204), 6.028(0.4)(201),
Click Here for Large Kupcikite Structure Window Crystal Structure:

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Topa D , Makovicky E , Balic-Zunic T , Paar W H , The Canadian Mineralogist , 41 (2003) p.1155-1166, Kupcikite, Cu3.4Fe0.6Bi5S10, a new Cu-Bi sulfosalt from, Felbertal, Austria, and its crystal structure, Locality: Felbertal, Austria

 

Physical Properties of Kupcikite

Help on Cleavage: Cleavage: None
Help on Color: Color: Gray.
Help on Diaphaneity: Diaphaneity: Opaque
Help on Fracture: Fracture: Brittle - Uneven - Very brittle fracture producing uneven fragments.
Help on Habit: Habit: Intergrown Crystals - Occurs as intergrown crystalline aggregates
Help on Hardness: Hardness: 3.5 - Copper Penny
Help on Luster: Luster: Metallic
 

Optical Properties of Kupcikite

Help on RL Anisotrophism: RL Anisotrophism: Moderate in air, strong in oil.
Help on RL Bireflectance: RL Bireflectance: Perceptible in air, moderate in oil.
Help on RL Color: RL Color: Grayish white with no internal reflections.
Help on RL Pleochroism: RL Pleochroism: Weak in air, white with bluish tints, enhanced in oil.
Help on Reflectivity Reflectivity
Standardized Intensity (100%) Reflection Spectra of Kupcikite in Air
λ R1 R2  ∑ R1(λ)   ∑ R2(λ) 
 400 nm   33.50   40.66 
   
 420 nm   33.47   40.21 
 440 nm   33.48   40.27 
 460 nm   33.48   40.29 
 470 nm   33.55   40.56 
 480 nm   33.50   40.60 
 500 nm   33.48   40.79 
 520 nm   33.68   40.96 
 540 nm   33.90   41.06 
 546 nm   33.92   41.14 
 560 nm   34.05   41.34 
 580 nm   34.15   41.28 
 589 nm   34.16   41.35 
 600 nm   34.18   41.28 
 620 nm   34.32   41.27 
 640 nm   34.26   41.42 
 650 nm   34.20   41.32 
 660 nm   34.11   41.10 
 680 nm   34.02   40.92 
 700 nm   34.00   40.94 
Calculated Relative Intensity Colors of Kupcikite in Air
Relative
Intensity		    0%   30%   60%   90% 100% 120% 150% 180% 210% 240% 270%
R1                      
R2                      
 

Calculated Properties of Kupcikite

Help on Electron Density: Electron Density: Bulk Density (Electron Density)=5.48 gm/cc
note: Specific Gravity of Kupcikite =6.42 gm/cc.
Help on Fermion Index: Fermion Index: Fermion Index = 0.0025645484
Boson Index = 0.9974354516
Help on Photoelectric: Photoelectric: PEKupcikite =1,226.65 barns/electron
U=PEKupcikite x rElectron Density=6,720.99 barns/cc.
Help on Radioactivity: Radioactivity: GRapi = 0 (Gamma Ray American Petroleum Institute Units)
Kupcikite is Not Radioactive
 

Kupcikite Classification
Help on Dana Class: Dana Class: 03.08.02.02 (03)Sulfides - Sulfosalts
  (03.08)where 1 < z/y <2 - (A+)i (A++)j [By Cz], A=metals, B=semi-metals, C=non-metals
  (03.08.02)Cuprobismutite Series
 
03.08.02.01 Cuprobismutite Cu10Bi12S23 C 2/m 2/m
 
03.08.02.02 Kupcikite! Cu3.4Fe0.6Bi5S10 C 2/m 2/m
Help on Strunz Class: Strunz Class: 02.JA.10b 02 - SULFIDES and SULFOSALTS (sulfides, selenides, tellurides; arsenides, antimonides, bismuthides; sulfarsenites, sulf
  02.J - Sulfosalts of PbS Archetype
  02.JA -Galena derivatives with little or no Pb
 
02.JA.10b Kupcikite! Cu3.4Fe0.6Bi5S10 C 2/m 2/m
 

Other Kupcikite Information
Help on References: References: NAME( CanMin, v 41, p 1155) PHYS. PROP.(CanMin, v 41, p 1155) OPTIC PROP.(CanMin, v 41, p 1155)
Help on See Also: See Also: Links to other databases for Kupcikite :
1 - Am. Min. Crystal Structure Database
2 - Athena
3 - Google Images
4 - Google Scholar
5 - Handbook of Mineralogy (MinSocAm)
6 - Handbook of Mineralogy (UofA)
7 - MinDAT
8 - MinMax(Deutsch)
9 - MinMax(English)
10 - Mineralienatlas (Deutsch)
11 - QUT Mineral Atlas
12 - Ruff.Info

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Kupcikite

Cu3.4Fe0.6Bi5S10
Dana No: 03.08.02.02 Strunz No: 02.JA.10b
Locality:

 

Notes: