2846100010
- Compounds, inorganic or organic, of rare-earth metals, of yttrium or of scandium or of mixtures of these metals
- Cerium compounds
- Rare-earth concentrate containing by weight 60 % or more but not more than 95 % of rare-earth oxides and not more than 1 % each of zirconium oxide, aluminium oxide or iron oxide, and having a loss on ignition of 5 % or more by weight