Dmitryivanovite

CaAl2O4
IMA status
  • Approved
IMA symbol
Div
IMA approved
2006
Also known as
  • Dmitryivanoviet
  • IMA2006-035

Where it forms, where it's found

Geological setting

Ca,Al-rich inclusion (CAI) in a chondrite meteorite.

Type locality
Northwest Africa 470 meteorite (NWA 470)
  1. M'daghra Lkeng Caïdat
  2. Errachidia Cercle
  3. Errachidia Province
  4. Drâa-Tafilalet Region
  5. Morocco

31.9833°, -4.1867°

3recorded occurrences
Source · OpenStreetMap

Physical

Colour
Colourless

Crystallography

Crystal system
Monoclinic
Space group
#14
Cell parameters
a = 7.95 Å · b = 8.62 Å · c = 10.25 Å
Cell angles
β = 93.1 °
Ratio a:b:c
1 : 1.084 : 1.289
Type-locality form

Subhedral grains to about 10 µm.

Crystal structure

Chemical composition

Constituent elements
Mass composition breakdown
ElementAtoms At. mass g/mol Mass g/molMass share
8OOxygenOxygen415.99963.996
40.49%
13AlAluminiumAluminium226.98253.964
34.15%
20CaCalciumCalcium140.07840.078
25.36%
Total158.038100.00%

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

From IMA formula

Synonyms

  • Dmitryivanoviet
  • IMA2006-035

In other languages

German
Dmitryivanovit · IMA 2006-035
Russian
Дмитрийвановит · Дмитрийивановит

Classification

Strunz
10th ed.

4.BC.10

  • 4OxidesClass
  • 4.BMetal: Oxygen = 3:4 and similarDivision
  • 4.BCWith medium-sized and large cationsGroup
  • 4.BC.10DmitryivanoviteSpecies
Dana
8th ed.

07.02.16

  • 07Multiple OxidesClass
  • 07.02AB2X4Type
  • 07.02.16— unnamed intermediate level —Group
  • 07.02.16DmitryivanoviteSpecies

Group, growth & confusion

Commonly confused with
1 mineral

Literature, links & citation

Citations
  1. 1957Dougill, M.W. (1957) Crystal structure of calcium monoaluminate. Nature: 180: 292-293.
  2. 1976Hörkner, W., Müller-Buschbaum, Hk. (1976) Zur kristallstruktur von CaAl2O4. Journal of Inorganic and Nuclear Chemistry: 38: 983-984.
  3. 1980Ito, S., Suzuki, K., Inagaki, M., Naka, S. (1980) High-pressure modifications of CaAl2O4 and CaGa2O4. Materials Research Bulletin: 15: 925-932.
  4. 1990Barbier, J., Neuhausen, J. (1990) Phase formation in the system (Ca,Sr)Al2O4. European Journal of Mineralogy: 2: 273-282.
  5. 2001Stebbins, J.F.; Oglesby, J.V.; Kroeker, S. (2001) Oxygen triclusters in crystalline CaAl4O7 (grossite) and in calcium aluminosilicate glasses: 17O NMR. American Mineralogist, 86 (10). 1307-1311 doi:10.2138/am-2001-1019DOI: 10.2138/am-2001-1019
Cite this entry
@misc{mineral2026,
  author    = {Mineral Index editorial board},
  title     = {Dmitryivanovite — Mineral Index},
  year      = {2026},
  url       = {https://mineralindex.org/minerals/dmitryivanovite-30909},
  note      = {Accessed 2026-05-11}
}