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Astrophyllite group
[ A
+
2
][ B
+
][ C
2+
7
][ D
4+
2
][F|(OH)
4
|O
2
|(SiO
3
)
8
]
Astrophyllite
Hydroastrophyllite
Kupletskite
Kupletskite-(Cs)
Magnesioastrophyllite
Niobokupletskite
Niobophyllite
Zircophyllite
Class:
Inosilicate
System: Triclinic