Native Elements
No anion
Sulfides
Most commonly S, but includes Te, As, or Se anions
Sulfates
SO2-4
Phophates
PO3-4
Hydroxides
OH-
Borates
BO3-3 or BO5-4 or both
Halides
Halogens such as Cl, F, B, or I
Carbonates
CO2-3 or NO-3
Orthosilicates
SiO4-4
Sorosilicates
Si2O76-
Cyclosilicates
Si6O176-
Single Chain Silicates
SiO32-
Double Chain Silicates
Si4O118-
Sheet Silicates
Si4O104-
Framework Silicates
SiO2