Magnesium phosphate
Chemical compound
Magnesium phosphate is a general term for salts of magnesium and phosphate appearing in several forms and several hydrates:
Monomagnesium phosphate xH₂O
Dimagnesium phosphate xH₂O
Trimagnesium phosphate xH₂O
Amorphous magnesium phosphate is also... Wikipedia
Cation: Mg2+