The katophorite root name group includes:
ferri-katophorite:
Na(NaCa)(Mg4Fe3+)(Si7Al)O22(OH)2
ferro-ferri-katophorite:
Na(NaCa)(Fe2+4Fe3+)(Si7Al)O22(OH)2
katophorite:
Na(NaCa)(Mg4Al)(Si7Al)O22(OH)2
The katophorite root name group is a member of the
sodium-calcium amphibole subgroup
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