IMA mineral species
Haiweeite
Ca(UO₂)₂Si₅O₁₂(OH)₂·3H₂O
Uranyl nesosilicate mineral.
Properties
⛏ Mohs hardness3.5
💅🪙🍶🔪💎
A copper coin scratches it.
| Chemical formula | Ca(UO₂)₂Si₅O₁₂(OH)₂·3H₂O |
|---|---|
| Elements | Ca, U, O, Si, H |
| Crystal system | Monoclinic |
| Mohs hardness | 3.5 |
| Density | — |
| Streak | — |
| Color | — |
| IMA symbol | Hwe |
| Nickel–Strunz class | 9.AK.25 |
“—” means no reliable value in Wikidata yet. Check Mindat for full data.
Care & Handling
- 🪶 Soft, Scratches Easily Mohs 3.5: softer than a steel knife, so it scratches easily. Store it apart from harder stones.
Learn more
- Haiweeite on Mindat.org
- Wikipedia article
- Wikidata item Q3782461 (source of this page's data – you can correct it there)
IMA mineral species
3–4
Monoclinic
Soft, Scratches Easily