IMA mineral species

Twinnite

🪶 Soft, Scratches Easily

Pb₀.₈Tl₀.₁Sb₁.₃As₀.₈S₄

Sulfosalt mineral.

Properties

⛏ Mohs hardness3.5
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💅🪙🍶🔪💎

A copper coin scratches it.

Chemical formulaPb₀.₈Tl₀.₁Sb₁.₃As₀.₈S₄
ElementsPb, Tl, Sb, As, S
Crystal system—
Mohs hardness3.5
Density—
Streak—
Color—
IMA symbolTwi
Nickel–Strunz class2.HC.05a

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

Care & Handling

  • 🪶 Soft, Scratches Easily Mohs 3.5: softer than a steel knife, so it scratches easily. Store it apart from harder stones.

🌍 Where it's found

Type locality (where it was first described): Taylor pit, Canada

  • 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.