IMA mineral species

Mendeleevite-(Ce)

Cs₆(REE₂₂Ca₆)(Si₇₀O₁₇₅)(OH,F)₁₄(H₂O)₂₁

Silicate mineral.

Mendeleevite-(Ce) specimen
Letnikovite-(Ce) and others (Mdl-Ce).png · Wikimedia Commons (see file page for author & license)

Properties

Chemical formulaCs₆(REE₂₂Ca₆)(Si₇₀O₁₇₅)(OH,F)₁₄(H₂O)₂₁
ElementsCs, Ca, Si, O, H, F
Crystal systemCubic
Mohs hardness—
Density—
Streak—
Color—
IMA symbolMdl-Ce

“—” 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.