User:Graeme Bartlett/compound families

Monoclinic K2Cd3(SO 4)4· 5H 2 O, (NH4) 2Cd3 (SO4) 4· 5H2O

K2SO4·3MnSO4·5H2O

kröhnkite A2M(XO4)2·2H2O

Rb2Cu3(SO4)3(OH)2 and

Cs 2 Cu (SeO 4) 2· 4H 2 O

Vanthoffite
Na6Co(SO4)4 anhydrous, dihydarte tetrahydrate

Na6Fe(SO4)4

Vanthoffite MgSO4·3Na2SO4

tuttons variants of sulfates
K2SO4·2MnSO4,

K2SO4·MnSO4·1.5H2O,

metastable phase K2SO4·MnSO4·2H2O

Struvite family
MMgPO4·6H2O M=NH4, K Rb, Tl orthorhombic Cs can be orthorhombic, also hexagonal KNaMg2(PO4)2·14H2O orthorhombic NH4NiPO4·6H2O orthorhombic struvite structure offshoot: NaMgPO4·7H2O is tetragonal

One dimensional metals
TlFe3Te3
 * CsNi3Se3