Ce que c'est
The niobium mineral of carbonatite deposits, and the reason niobium supply is so geographically concentrated.
Matériaux qui en proviennent
| Matériau | Rôle | Note sur la teneur |
|---|---|---|
| Niobium | Principal ore | — |
Minéral menant
The niobium mineral of carbonatite deposits, and the reason niobium supply is so geographically concentrated.
The niobium mineral of carbonatite deposits, and the reason niobium supply is so geographically concentrated.
| Matériau | Rôle | Note sur la teneur |
|---|---|---|
| Niobium | Principal ore | — |