Pyrochlore. Pyrochlore describes a group of minerals which are solid solutions containing niobium and tantalum (transition metals). Pyrochlore deposits are the major source of niobium ore. | |
Lizenzart: | Lizenzpflichtig |
Credit: | Science Photo Library / RHYS LEWIS & MINH TAN PHAM, AHS, DECD, UNISA |
Modell-Rechte: | nicht erforderlich |
Länge: | 35 Sekunden |
Seitenverhältnis: | 16:9 |
Restrictions: | - |