IMA mineral species

Dimorphite

As₄S₃

Sulfide mineral.

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

Properties

🔷 Orthorhombic✏️ streak yellow

Chemical formula	As₄S₃
Elements	As, S
Crystal system	Orthorhombic
Mohs hardness	—
Density	—
Streak	yellow
Color	—
IMA symbol	Dim
Nickel–Strunz class	2.FA.10

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

🌍 Where it's found

Type locality (where it was first described): Pozzuoli, Italy

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

Dimorphite on Mindat.org
Wikipedia article
Wikidata item Q3707800 (source of this page's data – you can correct it there)