IMA mineral species

Alacránite

As₈S₉

Mineral, arsenic sulfide.

Orange Yellow Pink Gray

Alacránite specimen — Alacránit, Radvamice, detail.jpg · Wikimedia Commons (see file page for author & license)

Properties

Chemical formula	As₈S₉
Elements	As, S
Crystal system	Monoclinic
Mohs hardness	1.5
Density	—
Streak	amber
Color	—
IMA symbol	Acr
Nickel–Strunz class	2.FA.20

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

🌍 Where it's found

Type locality (where it was first described): Uzon, Russia · Alacrán mine, Alacrán, Chile

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

Alacránite on Mindat.org
Wikipedia article
Wikidata item Q413440 (source of this page's data – you can correct it there)