IMA mineral species

Weissbergite

🪶 Soft, Scratches Easily

TlSbS₂

Sulfosalt mineral.

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

Properties

⛏ Mohs hardness1.5
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Scratches with a fingernail.

⚖ Density5.809 g/cm³
Very heavy
Chemical formulaTlSbS₂
ElementsTl, Sb, S
Crystal systemTriclinic
Mohs hardness1.5
Density5.809 g/cm³
Streak—
Color—
IMA symbolWsb
Nickel–Strunz class2.HD.05

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

Care & Handling

  • 🪶 Soft, Scratches Easily Mohs 1.5: softer than a steel knife, so it scratches easily. Store it apart from harder stones.