1. Phosphates, Arsenates and Vanadates
This class is based on XO43- anionic complexes where
X is P5+ (0.35Å), As5+ (0.46Å) and V5+ (0.59Å), larger
than S6+ (0.30Å). The similarity in the size of the large X cation gives rise to several solid solution series within this class.

2. Several groupings can be distinguished:
Anhydrous
Monazite CePO4
(monazite can contain other majority rare earth or lanthanide elements, i.e. La, Nd, Th. In these cases, the new convention is for example to call the mineral monazite-La.)

3. monazite

4. Hydroxl or halogen
Lazulite (Mg,Fe)Al2(PO4)2(OH)2
Triphyllite Li(Fe,Mn)PO4
Amblygonite series -
amblygonite LiAlPO4F
montebraesite LiAlPO4OH
Apatite series –
hydroxyapatiate Ca5(PO4)3OH
chlorapatite Ca5(PO4)3Cl
fluorapatite Ca5(PO4)3F
Pyromorphite series –
pyromorphite Pb5(PO4)3Cl
mimetite Pb5(AsO4)3Cl
vanadinite Pb5(VO4)3Cl

5. apatite

6. Apatite

7. pyromorphite

8. vanadinite

9. Essential water
Turquoise CuAl6(PO4)4(OH)8∙4H2O
Wavellite Al3(PO4)2(OH)3∙5H2O
Erythrite Co3(AsO4)2∙8H2O
Autunite Ca(UO2)2(PO4)2∙10H2O
Carnotite K2(UO2)2(VO4)2∙3H2O
The last two minerals are two of many uranyl (UO22-) minerals, which are combined with various anionic complexes.

10. turquiose

11. wavellite

12. autunite

13. carnotite