Search SEDIS
| Data sets | Publications | Expeditions | Thesaurus |
columbite ![]() | |
|---|---|
| BT | oxides |
| .niobates | |
| ..niobotantalates | |
| ...columbite | |
| RT | niobium ores |
| tantalum ores | |
| SN | This term has multiple hierarchies. |
| Data sets | Publications | Expeditions | Thesaurus |
columbite ![]() | |
|---|---|
| BT | oxides |
| .niobates | |
| ..niobotantalates | |
| ...columbite | |
| RT | niobium ores |
| tantalum ores | |
| SN | This term has multiple hierarchies. |