IMA mineral species
Strengite
FePO₄ * 2H₂O
Iron phosphate mineral.
Properties
⛏ Mohs hardness3.5
💅🪙🍶🔪💎
A copper coin scratches it.
🔷 Orthorhombic✏️ streak white
| Chemical formula | FePO₄ * 2H₂O |
|---|---|
| Elements | Fe, P, O, H |
| Crystal system | Orthorhombic |
| Mohs hardness | 3.5 |
| Density | — |
| Streak | white |
| Color | — |
| IMA symbol | Stg |
| Nickel–Strunz class | 8.CD.10 |
“—” 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.
🌍 Where it's found
Type locality (where it was first described): Eleonore mine, Germany
- 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
- Strengite on Mindat.org
- Wikipedia article
- Wikidata item Q2251798 (source of this page's data – you can correct it there)
IMA mineral species
3–4
Orthorhombic
RedGreenPurpleWhite & Clear
Soft, Scratches Easily