Crystopedia
IMA mineral species

Byzantievite

Ba₅(Ca,REE,Y)₂₂(Ti,Nb)₁₈(SiO₄)₄[(PO₄),(SiO₄)]₄(BO₃)₉O₂₂[(OH),F]₄₃·₁.₅H₂O

Phosphate-borate silicate mineral.

Properties

🔷 Trigonal
Chemical formulaBa₅(Ca,REE,Y)₂₂(Ti,Nb)₁₈(SiO₄)₄[(PO₄),(SiO₄)]₄(BO₃)₉O₂₂[(OH),F]₄₃·₁.₅H₂O
ElementsBa, Ca, Y, Ti, Nb, Si, O, P, B, H, F
Crystal systemTrigonal
Mohs hardness—
Density—
Streak—
Color—
IMA symbolByz

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

🌍 Where it's found

Type locality (where it was first described): Darai-Pioz glacier, Tajikistan

  • 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.

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