IMA mineral species
Tvrdýite
Fe²⁺Fe³⁺₂Al₃(PO₄)₄(OH)₅(H₂O)₄·2H₂O
Hydrous phosphate mineral.
Properties
| Chemical formula | Fe²⁺Fe³⁺₂Al₃(PO₄)₄(OH)₅(H₂O)₄·2H₂O |
|---|---|
| Elements | Fe, Al, P, O, H |
| Crystal system | Monoclinic |
| Mohs hardness | — |
| Density | — |
| Streak | — |
| Color | — |
| IMA symbol | Tvr |
“—” means no reliable value in Wikidata yet. Check Mindat for full data.
🌍 Where it's found
Type locality (where it was first described): Huber stock, Czech Republic
- 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
- Tvrdýite on Mindat.org
- Wikidata item Q19862360 (source of this page's data – you can correct it there)
IMA mineral species
Monoclinic