Properties
⛏ Mohs hardness4
💅🪙🍶🔪💎
A steel knife scratches it, it won't scratch glass.
| Chemical formula | (Co,Fe)As |
|---|---|
| Elements | Co, Fe, As |
| Crystal system | Orthorhombic |
| Mohs hardness | 4 |
| Density | — |
| Streak | — |
| Color | — |
| IMA symbol | Mod |
| Nickel–Strunz class | 2.CC.15 |
“—” means no reliable value in Wikidata yet. Check Mindat for full data.
Care & Handling
- 🪶 Soft, Scratches Easily Mohs 4: softer than a steel knife, so it scratches easily. Store it apart from harder stones.
Learn more
- Modderite on Mindat.org
- Wikidata item Q3859798 (source of this page's data – you can correct it there)
IMA mineral species
4–5
Orthorhombic
Soft, Scratches Easily