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Banalsite group
[ A
2+
][ B
2+
][(Al
2
Si
2
O
8
)
2
]
[ Na
2
][ Ba ]:
Banalsite
[ Na
2
][ Ca ]: Lisetite
[ Na
2
][ Sr ]:
Stronalsite
[ Ca ][ Ca ]: Svyatoslavite
Class:
Tectosilicate
System: Orthorhombic