Carbocalumite

Ca4Al2(OH)12(CO3) · 6H2O
IMA status
  • Approved
  • Pending publication
IMA symbol
Cbcl
IMA approved
2022
Also known as
  • Carbocalumiet
  • IMA2021-106

Where it forms, where it's found

Type locality
Hatrurim Junction (road no. 31)
  1. Hatrurim Basin
  2. Tamar Regional Council
  3. Beersheba Subdistrict
  4. Southern District
  5. Israel

31.2019°, 35.2615°

1recorded occurrences
Source · OpenStreetMap

Crystallography

Crystal system
Trigonal
Space group
R-3c
Cell parameters
a = 5.7646(1) Å · c = 49.409(1) Å

Chemical composition

Constituent elements
Mass composition breakdown
ElementAtoms At. mass g/mol Mass g/molMass share
8OOxygenOxygen2115.999335.979
57.29%
20CaCalciumCalcium440.078160.312
27.34%
13AlAluminiumAluminium226.98253.964
9.20%
1HHydrogenHydrogen241.00824.192
4.12%
6CCarbonCarbon112.01112.011
2.05%
Total586.458100.00%

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

From IMA formula

Synonyms

  • Carbocalumiet
  • IMA2021-106

In other languages

German
Carbocalumit · IMA 2021-106
Italian
Carbocalumite

Classification

Strunz
10th ed.

4.FL.100

  • 4OxidesClass
  • 4.FHydroxides (without V or U)Division
  • 4.FLHydroxides with H2O +- (OH); sheets of edge-sharing octahedraGroup
  • 4.FL.100CarbocalumiteSpecies

Group, growth & confusion

Literature, links & citation

Citations
  1. 2022(2022) Carbocalumite. Handbook of Mineralogy. Mineralogical Society of America
  2. 2022Miyawaki, Ritsuro, Hatert, Frédéric, Pasero, Marco, Mills, Stuart J. (2022) IMA Commission on New Minerals, Nomenclature and Classification (CNMNC) – Newsletter 66. European Journal of Mineralogy, 34 (2) 253-257 doi:10.5194/ejm-34-253-2022 DOI: 10.5194/ejm-34-253-2022
Cite this entry
@misc{mineral2026,
  author    = {Mineral Index editorial board},
  title     = {Carbocalumite — Mineral Index},
  year      = {2026},
  url       = {https://mineralindex.org/minerals/carbocalumite-55959},
  note      = {Accessed 2026-05-11}
}