IMA mineral species
Columbite-(Fe)
Fe²⁺Nb₂O₆
Oxide mineral.
Properties
| Chemical formula | Fe²⁺Nb₂O₆ |
|---|---|
| Elements | Fe, Nb, O |
| Crystal system | Orthorhombic |
| Mohs hardness | — |
| Density | — |
| Streak | — |
| Color | — |
| IMA symbol | Clb-Fe |
| Nickel–Strunz class | 4.DB.35 |
“—” means no reliable value in Wikidata yet. Check Mindat for full data.
🌍 Where it's found
Type locality (where it was first described): Haddam, United States
- 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
- Columbite-(Fe) on Mindat.org
- Wikidata item Q3683804 (source of this page's data – you can correct it there)
IMA mineral species
Orthorhombic