The synthesis of metavivianite and the oxidation sequence of vivianite

Kohei Chiba, Misaki Takahashi, Eriko Ohshima, Toru Kawamata, Kazumasa Sugiyama

Research output: Contribution to journalArticlepeer-review


A mixture of metavivianite, vivianite, and spheniscidite was obtained from an aqueous solution of FeSO4•7H2O and (NH4)2HPO4 at temperatures between 50 and 60 °C. The oxidation sequence of partially oxidized vivianite toward santabarbaraite or a solid solution between β–Fe2 (PO4)O and Fe4 (PO4)3 (OH) 3, without passing through metavivianite, was also demonstrated.

Original languageEnglish
Pages (from-to)485-489
Number of pages5
JournalJournal of Mineralogical and Petrological Sciences
Issue number6
Publication statusPublished - 2020


  • Metavivianite
  • Vivianite
  • XAFS
  • XRD

ASJC Scopus subject areas

  • Geophysics
  • Geology

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