| Mineral | Formula | S.G. |
| Allanite-(Ce) | Ca1.26Ce0.74Al1.83Fe1.17-(SiO4)3(OH) | 3.3 - 4.2 |
| Ancylite-(Ce) | Sr(Ce, La)(CO3)2(O.H.)∙H2O | 3.9 |
| Burbankite | (Na, Ca)3(Sr, Ba, Ce)3(CO3)5 | 3.5 |
| Carbocernite | (Na, Ca)(Sr, REE, Ba)(CO3)2 |
|
| Cebaite | Ba3Ce2(CO3)5F2 | 4.8 |
| Cordylite | (Na, Ca)Ba(REE, Sr)(CO3)4F | 4.4 |
| Ewaldite | (Ba, Sr)(Ca, Na, REE, Y)(CO3)2 | 3.3 |
| Huanghoite | BaRE(CO3)2F | 4.6 |
| Kukharenkoite-(Ce) | Ba2REE(CO3)3F | 4.6 |
| Monazite-(Ce) | (Ce, La, Nd, Th)(PO4) | 4.6 - 5.7 |
| Qaqarssukite-(Ce) | Ba(Ce, REE)(CO3)2F | 4.6 |
| Synchysite | (CaREE)(CO3)2F | 4.21 |
| Xenotime-(Y) | YPO4 | 4.4 - 5.1 |
| Parisite | CaCe2(CO3)3F2 | 4.4 |
| Petersenite (Ce) | Na4Ce2(CO3)5 | 3.9 |
| Barium-Strontium | BaSrNaREE Phase REE |
|
| Apatite | Ca5(PO4)3(OH, F, Cl) | 3.1 |
| Pyrochlore | (Na, Ca)2Nb2O6(OH, F) | 4.2 - 6.4 |
| Fergusonite-(Y) | YNbO4 | 5.1 |