IMA mineral species ⚠ Handle with care

Hutchinsonite

TlPbAs₅S₉

Sulfosalt mineral.

Hutchinsonite specimen — Hutchinsonite-169844.jpg · Wikimedia Commons (see file page for author & license)

Properties

Chemical formula	TlPbAs₅S₉
Elements	Tl, Pb, As, S
Crystal system	Orthorhombic
Mohs hardness	—
Density	—
Streak	red
Color	—
IMA symbol	Hut
Nickel–Strunz class	2.HD.45

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

⚠ Handle With Care High caution

☠ Toxic if ingested😷 Dust / fibre inhalation hazard🚫 Don't make water elixirs

Why: A thallium lead arsenic sulfosalt. Thallium and arsenic are both highly toxic.

Safe handling: Wash your hands after handling. Don't lick it, put it in your mouth, or make elixirs with it. Don't cut or grind it. Display it out of reach of children and pets.

Sources: Wikipedia: Hutchinsonite · ATSDR ToxFAQs: Thallium · ATSDR ToxFAQs: Arsenic. General safety information only, not medical advice. More on safe handling.

🌍 Where it's found

Type locality (where it was first described): Lengenbach quarry, Switzerland

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

Hutchinsonite on Mindat.org
Wikipedia article
Wikidata item Q597185 (source of this page's data – you can correct it there)