title: Blodite group
text: # Blodite group
  
  The blodite group (or Blödite group) is a group of minerals with two (in most cases divalent) cations and two anions. The group includes blödite $Na_2Mg(SO_4)_2•4H_2O,$ leonite $K_2Mg(SO_4)_2•4(H_2O),$ anapaite $Ca_2Fe(PO_4)_2•4(H_2O),$ schertelite $(NH_4)_2Mg(PO_3OH)_2•4(H_2O,)$ manganoblödite $Na_2Mn(SO_4)_2•4(H_2O),$ cobaltoblödite $Na_2Co(SO_4)$ $_2•4(H_2O),$ $changoiteNa_2Zn(SO_4)_2•4(H_2O)$
  
  