IMA mineral species
Kosnarite
KZr₂(PO₄)₃
Phosphate mineral.
Properties
⛏ Mohs hardness4.5
💅🪙🍶🔪💎
A steel knife scratches it, it won't scratch glass.
⚖ Density3.055 g/cm³
Average
| Chemical formula | KZr₂(PO₄)₃ |
|---|---|
| Elements | K, Zr, P, O |
| Crystal system | Trigonal |
| Mohs hardness | 4.5 |
| Density | 3.055 g/cm³ |
| Streak | — |
| Color | — |
| IMA symbol | Ksn |
| Nickel–Strunz class | 8.AC.60 |
“—” means no reliable value in Wikidata yet. Check Mindat for full data.
Care & Handling
- 🪶 Soft, Scratches Easily Mohs 4.5: softer than a steel knife, so it scratches easily. Store it apart from harder stones.
Learn more
- Kosnarite on Mindat.org
- Wikipedia article
- Wikidata item Q3816567 (source of this page's data – you can correct it there)
IMA mineral species
4–5
Trigonal
GreenTealBlueWhite & Clear
Soft, Scratches Easily