| 17.6.1 | Nagelschmidtite | |
| 17.6.2 | Perhamite | |
| 17.6.3 | Viséite | |
| 17.6.4 | Phosinaite | |
| 17.6.5 | Clinophosinaite | |
| 17.6.6 | Karnasurtite-(Ce) | | (Ce,La,Th)(Ti,Nb)(Al,Fe)(Si,P) | | O | | (OH) | | ·3H | | O |
|
| 17.6.7 | Lomonosovite | |
| 17.6.8 | Bornemanite | |
| 17.6.9 | Sobolevite | | Na | | Ca(NaCaMn)Ti | | (Si | | O | | ) | | (PO | | ) | | O | | F | | |
|
| 17.6.10 | Laplandite-(Ce) | |
| 17.6.12 | Saryarkite-(Y) | | Ca(Y,Th)Al | | (SiO | | ) | | (PO | | ,SO | | ) | | (OH) | | ·6H | | O |
|
| 17.6.13 | Steenstrupine-(Ce) | | Na | | Mn | | (Fe | | ,Mn | | ) | | Ce | | (Zr,Th)[(OH) | | |HPO | | |(PO | | ) | | |(Si | | O | | ) | | ]·2H | | O |
|
| 17.6.14 | Waylandite | |
| 17.6.15 | Britholite-(Ce) | | Ca | | (Ce,Ca) | | [(OH,F)|(SiO | | ,PO | | ) | | ] |
|
| 17.6.16 | Britholite-(Y) | | Ca | | (Y,Ca) | | [(OH,F)|(SiO | | ,PO | | ) | | ] |
|
| 17.6.17 | Eylettersite | | (Th,Pb)Al | | [(OH) | | |(PO | | ,SiO | | ) | | ] ? |
|