The namuwite group includes:
bechererite:
Zn7Cu(OH)13[SiO(OH)3(SO4)]
hanahanite:
[Zn8(OH)14(SO4)].3H2O
haywoodite:
[Pb(H2O)10)][Zn12(OH)20(H2O)(SO4)3]
lahnsteinite:
Zn4(SO4)(OH)6.3H2O
namuwite:
Zn4(SO4)(OH)6.4H2O
osakaite:
Zn4(SO4)(OH)6.5H2O
ramsbeckite:
Cu15(SO4)4(OH)22.6H2O
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