IMA mineral species
Dufrénoysite
Pb₂As₂S₅
Sulfosalt mineral.
Properties
⛏ Mohs hardness3
💅🪙🍶🔪💎
A copper coin scratches it.
| Chemical formula | Pb₂As₂S₅ |
|---|---|
| Elements | Pb, As, S |
| Crystal system | Monoclinic |
| Mohs hardness | 3 |
| Density | — |
| Streak | — |
| Color | — |
| IMA symbol | Duf |
| Nickel–Strunz class | 2.HC.05d |
“—” means no reliable value in Wikidata yet. Check Mindat for full data.
🌍 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
- Dufrénoysite on Mindat.org
- Wikidata item Q422333 (source of this page's data – you can correct it there)
IMA mineral species
3–4
Monoclinic