Malacon

Where it forms, where it's found

28recorded occurrences

Source · OpenStreetMap

Chemical composition

Constituent elements: Mass composition breakdown
Element Atoms At. mass g/mol Mass g/mol Mass share
40ZrZirconium Zirconium 1 91.224 91.224
49.77%
8OOxygen Oxygen 4 15.999 63.996
34.91%
14SiSilicon Silicon 1 28.085 28.085
15.32%
Total 183.305 100.00%
Mass share = atoms × atomic mass ÷ molar mass × 100
From Mindat formula

Mass composition breakdown
Element	Atoms	At. mass g/mol	Mass g/mol	Mass share
40ZrZirconium	Zirconium	1	91.224	91.224	49.77%
8OOxygen	Oxygen	4	15.999	63.996	34.91%
14SiSilicon	Silicon	1	28.085	28.085	15.32%
	Total	183.305	100.00%

Synonyms

Malakon

Literature, links & citation

Citations

1844Scheerer, Th. (1844) Polykras und Malakon, zwei neue Mineralspecies. Annalen der Physik und Chemie, 138. 429-443 doi:10.1002/andp.18441380715DOI: 10.1002/andp.18441380715
1915Lacroix, Alfred (1915) Sur le malacon des pegmatites de Madagascar. Bulletin de Minéralogie, 38 (5) 200-204 doi:10.3406/bulmi.1915.3625DOI: 10.3406/bulmi.1915.3625
1922Lacroix, Alfred (1922) Minéralogie de Madagascar, Tome I. Géologie-Minéralogie descriptive. Augustin Challamel. 624 pp.
1923Goldschmidt, V. M., Thomassen, L. (1923) Das Vorkommen des Elements No. 72 (Hafnium) im Malakon und Alvit [The occurrence of element No. 72 (Hafnium) in Malakon and Alvite]. Norsk Geologisk Tidsskrift [Norwegian Journal of Geology], 7 (1) 61-68

Cite this entry

@misc{mineral2026,
  author    = {Mineral Index editorial board},
  title     = {Malacon — Mineral Index},
  year      = {2026},
  url       = {https://mineralindex.org/minerals/malacon-38847},
  note      = {Accessed 2026-05-11}
}