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Benitoite group
[ A
2+
][ B
4+
][Si
3
O
9
]
[ Ba ][ Ti ]:
Benitoite
[ Ba ][ Zr ]: Bazirite
[ Ba ][ Sn ]: Pabstite
[ K
2
][ Zr ]: Wadeite
Class:
Cyclosilicate