The kupletskite group includes:
kupletskite:
K2NaMn2+7Ti2Si8O26(OH)4F
kupletskite-(Cs):
Cs2NaMn2+7Ti2(Si4O12)2O2(OH)4F
laverovite:
K2NaMn7Zr2(Si4O12)2O2(OH)4F
The kupletskite group is a member of the
astrophyllite supergroup
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