Properties
⛏ Mohs hardness2.5 – 3
💅🪙🍶🔪💎
A copper coin scratches it.
⚖ Density5.5 – 5.8 g/cm³
Very heavy
| Chemical formula | Cu₂S |
|---|---|
| Elements | Cu, S |
| Crystal system | Monoclinic |
| Mohs hardness | 2.5 – 3 |
| Density | 5.5 – 5.8 g/cm³ |
| Streak | — |
| Color | — |
| IMA symbol | Cc |
| Nickel–Strunz class | 2.BA.05 |
“—” 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
- Chalcocite on Mindat.org
- Wikipedia article
- Wikidata item Q278106 (source of this page's data – you can correct it there)
IMA mineral species
2–3
Monoclinic
BlackGray
Soft, Scratches Easily