IMA mineral species

Chivruaiite

Ca₄(Ti,Nb)₅(Si₆O₁₇)₂(OH,O)₅·13-14H₂O

Inosilicate mineral.

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

Properties

🔷 Orthorhombic

Chemical formula	Ca₄(Ti,Nb)₅(Si₆O₁₇)₂(OH,O)₅·13-14H₂O
Elements	Ca, Ti, Nb, Si, O, H
Crystal system	Orthorhombic
Mohs hardness	—
Density	—
Streak	—
Color	—
IMA symbol	Cvr
Nickel–Strunz class	9.DG.45

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

🌍 Where it's found

Type locality (where it was first described): Lovozero massif, 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.

Learn more

Chivruaiite on Mindat.org
Wikidata item Q19833325 (source of this page's data – you can correct it there)