Apatelite

Fe3(SO4)2(OH)5·0.5H2O
IMA status
  • Grandfathered
  • Questionable
Also known as
  • Apatelit
  • Apatelita

Where it forms, where it's found

2recorded occurrences
Source · OpenStreetMap

Chemical composition

Constituent elements
Mass composition breakdown
ElementAtoms At. mass g/mol Mass g/molMass share
8OOxygenOxygen13.515.999215.987
47.61%
26FeIronIron355.845167.535
36.93%
16SSulfurSulfur232.06064.120
14.13%
1HHydrogenHydrogen61.0086.048
1.33%
Total453.690100.00%

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

From Mindat formula

Synonyms

  • Apatelit
  • Apatelita

Classification

Strunz
10th ed.

7.BC.07

  • 7SulfatesClass
  • 7.BSulfates (selenates, etc.) with additional anions, without H2ODivision
  • 7.BCWith medium-sized and large cationsGroup
  • 7.BC.07ApateliteSpecies

Literature, links & citation

Citations
  1. 1843Meillet (1843) Annales des mines: 4: 3: 808.
  2. 1951Palache, Charles; Berman, Harry; Frondel, Clifford (1951) The System of Mineralogy (7th ed.) Vol. 2 - Halides, Nitrates, Borates, Carbonates, Sulfates, Phosphates, Arsenates, Tungstates, Molybdates, Etc. John Wiley and Sons.
Cite this entry
@misc{mineral2026,
  author    = {Mineral Index editorial board},
  title     = {Apatelite — Mineral Index},
  year      = {2026},
  url       = {https://mineralindex.org/minerals/apatelite-273},
  note      = {Accessed 2026-05-11}
}