Samarskite mineral. Samarskite is a radioactive rare earth mineral. A rare earth mineral is one that contains one or more rare earth elements as major metal constituents. Samarskite contains yttrium (Y),uranium (U),thorium (Th),niobium (Nb) and tantalum (Ta),in complex with iron (Fe) and calcium (Ca) | |
Licence : | Droits gérés |
Crédit: | Science Photo Library / Wiersma, Dirk |
Taille de l’image : | 5138 px × 3425 px |
Model Release : | Non requis |
Property Release : | Non requis |
Restrictions : | - |