Chihmingite

NiAl2O4
IMA status
  • Approved
  • Pending publication
IMA symbol
Cim
Also known as
  • Chihmingiet
  • IMA2022-010

Where it forms, where it's found

Type locality
Uglvik peridotite body
  1. Uglvik
  2. Otrøya
  3. Midsund
  4. Molde
  5. Møre og Romsdal
  6. Norway

62.7022°, 6.7019°

2recorded occurrences
Source · OpenStreetMap

Crystallography

Crystal system
Isometric
Space group
Fd-3m
Cell parameters
a = 8.059(5) Å
Crystal structure

Chemical composition

Constituent elements
Mass composition breakdown
ElementAtoms At. mass g/mol Mass g/molMass share
8OOxygenOxygen415.99963.996
36.23%
28NiNickelNickel158.69358.693
33.22%
13AlAluminiumAluminium226.98253.964
30.55%
Total176.653100.00%

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

From IMA formula

Synonyms

  • Chihmingiet
  • IMA2022-010

In other languages

German
Chihmingit · IMA 2022-010 · Nickel-Aluminat-Spinell · Nickel-Aluminium-Spinell
Italian
Chihmingite

Classification

Strunz
10th ed.

4.BA

  • 4OxidesClass
  • 4.BMetal: Oxygen = 3:4 and similarDivision
  • 4.BAWith small and medium-sized cationsGroup
  • 4.BAChihmingiteSpecies

Group, growth & confusion

Literature, links & citation

Citations
  1. 1946Milligan, W. O.; Merten, L. (1946) X-ray Diffraction Studies in the System NiO–Al2O3. The Journal of Physical Chemistry, 50 (6). 465-470 doi:10.1021/j150450a003DOI: 10.1021/j150450a003
  2. 1960Schmalzried, H. (1960) Temperaturabhängigkeit der Kationenverteilung im Spinell NiAl2O4. Die Naturwissenschaften, 47 (20). 466-467 doi:10.1007/bf00638282DOI: 10.1007/bf00638282
  3. 1966PETTIT, F. S., RANDKLEV, E. H., FELTEN, E. J. (1966) Formation of NiAl2O4 by Solid State Reaction. Journal of the American Ceramic Society, 49 (4). 199-203 doi:10.1111/j.1151-2916.1966.tb13233.xDOI: 10.1111/j.1151-2916.1966.tb13233.x
  4. 1968Datta, R. K., Roy, Rustum (1968) Order-disorder in MgAl2O4. The systems: MgAl2O4-LiAl5O8, MgAl2O4-NiCr2O4, MgAl2O4-NiAl2O4, and NiAl2O4-ZnAl2O4. American Mineralogist, 53 (9-10) 1456-1475
  5. 1972COOLEY, RICHARD F., REED, JAMES S. (1972) Equilibrium Cation Distribution in NiAl2O4, CuAl2O4, and ZnAl2O4 Spinels. Journal of the American Ceramic Society, 55 (8). 395-398 doi:10.1111/j.1151-2916.1972.tb11320.xDOI: 10.1111/j.1151-2916.1972.tb11320.x
Cite this entry
@misc{mineral2026,
  author    = {Mineral Index editorial board},
  title     = {Chihmingite — Mineral Index},
  year      = {2026},
  url       = {https://mineralindex.org/minerals/chihmingite-56040},
  note      = {Accessed 2026-05-11}
}