IMA mineral species

Siudaite

Na₈(Mn²⁺₂Na)Ca₆(Fe³⁺Mn²⁺)₃Zr₃NbSi₂₄(Si,☐,Ti)O₇₄(OH)₂Cl·5H₂O

Eudialyte mineral group.

Siudaite specimen
Siudaite.jpg · Wikimedia Commons (see file page for author & license)

Properties

Chemical formulaNa₈(Mn²⁺₂Na)Ca₆(Fe³⁺Mn²⁺)₃Zr₃NbSi₂₄(Si,☐,Ti)O₇₄(OH)₂Cl·5H₂O
ElementsNa, Mn, Ca, Fe, Zr, Nb, Si, Ti, O, H, Cl
Crystal system—
Mohs hardness—
Density—
Streak—
Color—
IMA symbolSiu

“—” means no reliable value in Wikidata yet. Check Mindat for full data.

🌍 Where it's found

Type locality (where it was first described): Mount Eveslogchorr, Russia

  • Type locality
  • Notable source / deposit
  • Country of origin

Marker positions are approximate (region or locality level). Type localities from Wikidata; notable sources curated by Crystopedia.