IMA mineral species

Iowaite

Mg₆Fe³⁺₂(OH)₁₆Cl₂·4H₂O

Hydrotalcite group mineral.

Iowaite specimen — Iowaite-605914.jpg · Wikimedia Commons (see file page for author & license)

Properties

Chemical formula	Mg₆Fe³⁺₂(OH)₁₆Cl₂·4H₂O
Elements	Mg, Fe, O, H, Cl
Crystal system	Hexagonal
Mohs hardness	1.5
Density	2.1 g/cm³
Streak	—
Color	—
IMA symbol	Iow
Nickel–Strunz class	4.FL.05

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

🌍 Where it's found

Type locality (where it was first described): Sioux County, United States

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

Iowaite on Mindat.org
Wikidata item Q1070585 (source of this page's data – you can correct it there)