Oyamalite

Where it forms, where it's found

1recorded 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%

Literature, links & citation

Citations

1937Am Min (1937) 11:137 [wrong citation?]
1952Kimura, K. (1952) The chemical investigations of Japanese minerals containing rarer elements. Part V. Analyses of fergusonite of Hagata, hagatalite of Hagata, and oyamalite of Oyama, Iyo Province. Jap. Journal. Chem. 2(3), 81-85.

Cite this entry

@misc{mineral2026,
  author    = {Mineral Index editorial board},
  title     = {Oyamalite — Mineral Index},
  year      = {2026},
  url       = {https://mineralindex.org/minerals/oyamalite-39310},
  note      = {Accessed 2026-05-11}
}