Mineralogy Database

Tetra-auricupride Mineral Data

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General Tetra-auricupride Information

Help on Chemical  Formula: Chemical Formula: AuCu
Help on Composition: Composition: Molecular Weight = 260.51 gm
   Copper  24.39 %  Cu
   Gold    75.61 %  Au
          100.00 % 
Help on Empirical Formula: Empirical Formula: AuCu
Help on Environment: Environment: In mafic to ultrabasic serpentinites which contain platinum group metals.
Help on IMA Status: IMA Status: Approved IMA 1982
Help on Locality: Locality: Sardala, Xinjiang, China. Link to MinDat.org Location Data.
Help on Name Origin: Name Origin: Named after its crystal symmetry and Au, Cu content.
Help on Synonym: Synonym: ICSD 42574
  PDF 25-1220

Tetra-auricupride Image

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Comments: Golden brown crystals of tetra-auricupride on matrix.
Location: Karabash (Karabasch), Chelyabinsk Oblast', Urals Region, Russia. Scale: Picture size 2 mm.
© Thomas Witzke / Abraxas-Verlag

Tetra-auricupride Crystallography

Help on Axial Ratios: Axial Ratios: a:c = 1:0.92676
Help on Cell Dimensions: Cell Dimensions: a = 3.96, c = 3.67, Z = 2; V = 57.55 Den(Calc)= 15.03
Help on Crystal System: Crystal System: Tetragonal - Ditetragonal Dipyramidal H-M Symbol (4/m 2/m 2/m) Space Group: P 4/mmm
Help on X Ray Diffraction: X Ray Diffraction: By Intensity(I/Io): 1.195(1), 2.24(1), 0.797(0.9),

Physical Properties of Tetra-auricupride

Help on Cleavage: Cleavage: None
Help on Color: Color: Golden yellow.
Help on Density: Density: 15.03
Help on Diaphaneity: Diaphaneity: Opaque
Help on Fracture: Fracture: Malleable - Deforms rather than breaking apart with a hammer.
Help on Habit: Habit: Anhedral Grains - Granular minerals without the expression of crystal shapes
Help on Hardness: Hardness: 4.5 - Between Fluorite and Apatite
Help on Luminescence: Luminescence: Non-fluorescent.
Help on Luster: Luster: Metallic
Help on Streak: Streak: yellow

Optical Properties of Tetra-auricupride

Help on RL Anisotrophism: RL Anisotrophism: Weak, with colors from gray to light gray.
Help on RL Color: RL Color: Copper red with a yellow tint.
Help on Reflectivity Reflectivity
Standardized Intensity (100%) Reflection Spectra of Tetra-auricupride in Air
λ R  ∑ R(λ) 
 405 nm   44.60   
 436 nm   46.80 
 480 nm   50.30 
 526 nm   55.80 
 546 nm   61.20 
 578 nm   74.40 
 589 nm   76.60 
 622 nm   83.60 
 644 nm   84.90 
 656 nm   85.40 
 664 nm   86.60 
 700 nm   91.30 
Calculated Relative Intensity Colors of Tetra-auricupride in Air
   0%   20%   40%   60%   80% 100% 120% 140% 160% 180% 190%

Calculated Properties of Tetra-auricupride

Help on Electron Density: Electron Density: Bulk Density (Electron Density)=12.5 gm/cc
note: Specific Gravity of Tetra-auricupride =15.0 gm/cc.
Help on Fermion Index: Fermion Index: Fermion Index = 0
Boson Index = 1
Help on Photoelectric: Photoelectric: PETetra-auricupride =1,252.86 barns/electron
U=PETetra-auricupride x rElectron Density=15612.99 barns/cc.
Help on Radioactivity: Radioactivity: GRapi = 0 (Gamma Ray American Petroleum Institute Units)
Tetra-auricupride is Not Radioactive

Tetra-auricupride Classification

Help on  Dana Class: Dana Class: (01)Native Elements
  (01.01)with metallic elements other than the platinum group
  (01.01.02)Auricupride Group Auricupride Cu3Au P m3m 4/m 3 2/m Tetra-auricupride AuCu P 4/mmm 4/m 2/m 2/m Yuanjiangite AuSn P 63/mmc 6/m 2/m 2/m
Help on  Strunz Class: Strunz Class: 01.AA.10b 01 - ELEMENTS (Metals and intermetallic alloys; metalloids and nonmetals; carbides, silicides, nitrides, phosphides)
  01.A - Metals and Intermetallic Alloys
  01.AA -Copper-cupalite family
01.AA.10b Tetra-auricupride AuCu P 4/mmm 4/m 2/m 2/m

Other Tetra-auricupride Information

Help on References: References: NAME( Dana8) PHYS. PROP.(List of New Min. Names,28-33th,1974-1984)
Help on See Also: See Also: Links to other databases for Tetra-auricupride :
1 - Am. Min. Crystal Structure Database
2 - Athena
3 - EUROmin Project
4 - GeoScienceWorld
5 - Google Images
6 - Google Scholar
7 - MinDAT
8 - Mineralienatlas (Deutsch)
9 - Online Mineral Museum
10 - QUT Mineral Atlas
11 - Ruff.Info

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Dana No: Strunz No: 01.AA.10b





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