IMA mineral species

Xonotlite

Ca₆Si₆O₁₇(OH)₂

Inosilicate mineral.

Yellow Pink Gray White & Clear

Xonotlite specimen — Xonotlite Hydrous calcium silicate Point Shivery near Cox' Cove Bay of Islands Newfoundland 1928.jpg · Wikimedia Commons (see file page for author & license)

Properties

🔷 Monoclinic

Chemical formula	Ca₆Si₆O₁₇(OH)₂
Elements	Ca, Si, O, H
Crystal system	Monoclinic
Mohs hardness	—
Density	—
Streak	—
Color	—
IMA symbol	Xon
Nickel–Strunz class	9.DG.35

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

🌍 Where it's found

Type locality (where it was first described): Tetela de Xonotla, Mexico

Learn more

Xonotlite on Mindat.org
Wikipedia article
Wikidata item Q2252328 (source of this page's data – you can correct it there)