IMA mineral species

Fraipontite

(Zn,Al)₃(Si,Al)₂O₅(OH)₄

Phyllosilicate mineral.

Fraipontite specimen — Fraipontite-sea52a.jpg · Wikimedia Commons (see file page for author & license)

Properties

Chemical formula	(Zn,Al)₃(Si,Al)₂O₅(OH)₄
Elements	Zn, Al, Si, O, H
Crystal system	Monoclinic
Mohs hardness	—
Density	—
Streak	—
Color	—
IMA symbol	Fpt
Nickel–Strunz class	9.ED.15

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

🌍 Where it's found

Type locality (where it was first described): Sterling Hill, United States · Sterling Hill, United States · Kelmis, Belgium · East Kazakhstan Region, Kazakhstan

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

Fraipontite on Mindat.org
Wikipedia article
Wikidata item Q2252335 (source of this page's data – you can correct it there)