Mg-rich Calcite

(Ca,Mg)CO3
Also known as
  • Magnesian Calcite
Variety of
Calcite
CalciteCa(CO3)

Where it forms, where it's found

22recorded occurrences
Source · OpenStreetMap

Chemical composition

Constituent elements
Mass composition breakdown
ElementAtoms At. mass g/mol Mass g/molMass share
8OOxygenOxygen315.99947.997
38.58%
20CaCalciumCalcium140.07840.078
32.22%
12MgMagnesiumMagnesium124.30524.305
19.54%
6CCarbonCarbon112.01112.011
9.66%
Total124.391100.00%

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

From Mindat formula

Synonyms

  • Magnesian Calcite

Literature, links & citation

Citations
  1. Li, H., Sun, C.-Yu, Fang, Y., Carlson, C.M., Xu, H., Ješovnik, A., Sosa-Calvo, J., Zarnowski, R., Bechtel, H.A., Fournelle, J.H., Andes, D.R., Schultz, T.R., Gilbert, P.U.P.A., Currie, C.R. (2020): Biomineral armor in leaf-cutter ants. Nature Communications, 11, 5792.
  2. 2017dos Santos, Hélisson, Neumann, Reiner, Ávila, Ciro Alexandre (2017) Mineral Quantification with Simultaneous Refinement of Ca-Mg Carbonates Non-Stoichiometry by X-ray Diffraction, Rietveld Method. Minerals, 7 (9) 164 doi:10.3390/min7090164 DOI: 10.3390/min7090164
  3. 2019Lammers, Laura Nielsen, Mitnick, Elizabeth H. (2019) Magnesian calcite solid solution thermodynamics inferred from authigenic deep-sea carbonate. Geochimica et Cosmochimica Acta, 248. 343-355 doi:10.1016/j.gca.2019.01.006DOI: 10.1016/j.gca.2019.01.006
  4. 2023Keykha, Hamed Abdeh; Zangani, Alireza; Romiani, Hadi Mohamadzadeh; Asadi, Afshin; Kawasaki, Satoru; Radmanesh, Niloofar (2023) Characterizing Microbial and CO2-Induced Carbonate Minerals: Implications for Soil Stabilization in Sandy Environments. Minerals, 13 (7). 976 doi:10.3390/min13070976DOI: 10.3390/min13070976
Cite this entry
@misc{mineral2026,
  author    = {Mineral Index editorial board},
  title     = {Mg-rich Calcite — Mineral Index},
  year      = {2026},
  url       = {https://mineralindex.org/minerals/mg-rich-calcite-27574},
  note      = {Accessed 2026-05-11}
}