IMA mineral species

Manganohörnesite

Mn²⁺₃(AsO₄)₂·8H₂O

Arsenate mineral.

Manganohörnesite specimen — Manganohörnesite-Hörnesite-1099823.png · Wikimedia Commons (see file page for author & license)

Properties

Chemical formula	Mn²⁺₃(AsO₄)₂·8H₂O
Elements	Mn, As, O, H
Crystal system	—
Mohs hardness	—
Density	—
Streak	—
Color	—
IMA symbol	Mhns
Nickel–Strunz class	8.CE.40

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

🌍 Where it's found

Type locality (where it was first described): Långban, Sweden

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

Manganohörnesite on Mindat.org
Wikidata item Q3844530 (source of this page's data – you can correct it there)