Cuproauride

Cu3Au
IMA status
  • Approved
  • Grandfathered
  • Questionable
IMA symbol
Cua

Where it forms, where it's found

6recorded occurrences
Source · OpenStreetMap

Crystallography

Comment

Crystallography not determined

Chemical composition

Constituent elements
Mass composition breakdown
ElementAtoms At. mass g/mol Mass g/molMass share
79AuGoldGold1196.967196.967
50.82%
29CuCopperCopper363.546190.638
49.18%
Total387.605100.00%

Mass share = atoms × atomic mass ÷ molar mass × 100

From IMA formula

In other languages

German
Cuproaurid
Italian
Cuproauride
Russian
Аурикуприд

Classification

Strunz
10th ed.

1.AA.10a

  • 1ElementsClass
  • 1.AMetals and Intermetallic AlloysDivision
  • 1.AACopper-cupalite familyGroup
  • 1.AA.10aCuproaurideSpecies
Dana
8th ed.

01.01.02.03

  • 01Native Elements and AlloysClass
  • 01.01Metals, other than the Platinum GroupType
  • 01.01.02Auricupride GroupGroup
  • 01.01.02.03CuproaurideSpecies

Group, growth & confusion

In the same group
2 members

Literature, links & citation

Citations
  1. 1939Lozhechkin M P (1939) New data on the chemical composition of «gold cupride». Comptes Rendus de l'Académie des Sciences de l'URSS 24, 451-454
  2. 1971Razin L V, Gomonova A I, Bykov V P, Meshchankina V I (1971) A new natural intermetallide of gold, copper, and palladium from ores of the Talnakh deposit. Zapiski Vsesoyuznogo Mineralogicheskogo Obshchestva 100, issue 1, 66-76
  3. 1977Am. Min. 62, 593(1977)[abstract]
  4. 1993Am. Min. 78, 676(1993)[abstract]
Cite this entry
@misc{mineral2026,
  author    = {Mineral Index editorial board},
  title     = {Cuproauride — Mineral Index},
  year      = {2026},
  url       = {https://mineralindex.org/minerals/cuproauride-4681},
  note      = {Accessed 2026-05-11}
}