Pyrochlore. Sample of the mineral pyrochlore, a niobium oxide that also contains calcium and sodium. It is at the niobium end of the pyrochlore supergroup. It is an important ore of niobium, with pyrochlore deposits also containing uranium and thorium. | |
Licence : | Droits gérés |
Crédit: | Science Photo Library |
Taille de l’image : | 4500 px × 4501 px |
Model Release : | Non requis |
Property Release : | Non requis |
Restrictions : | - |