IMA mineral species
Boulangerite
Pb₅Sb₄S₁₁
Sulfosalt mineral: lead antimony sulfide.
Properties
⛏ Mohs hardness2.5 – 3
💅🪙🍶🔪💎
A copper coin scratches it.
🔷 Monoclinic✏️ streak black
| Chemical formula | Pb₅Sb₄S₁₁ |
|---|---|
| Elements | Pb, Sb, S |
| Crystal system | Monoclinic |
| Mohs hardness | 2.5 – 3 |
| Density | — |
| Streak | black |
| Color | — |
| IMA symbol | Bou |
| Nickel–Strunz class | 2.HC.15 |
“—” means no reliable value in Wikidata yet. Check Mindat for full data.
Care & Handling
- 🪶 Soft, Scratches Easily Mohs 2.5 – 3: softer than a steel knife, so it scratches easily. Store it apart from harder stones.
Learn more
- Boulangerite on Mindat.org
- Wikipedia article
- Wikidata item Q250618 (source of this page's data – you can correct it there)
IMA mineral species
2–3
Monoclinic
Soft, Scratches Easily