The retzian group includes:
retzian-(Ce):
Mn2+2Ce(AsO4)(OH)4
retzian-(La):
Mn2+2La(AsO4)(OH)4
retzian-(Nd):
Mn2+2Nd(AsO4)(OH)4
They are all anhydrous arsenates with hydroxyl,
manganese-bearing minerals.
Back to Minerals