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Beryllium-Aluminosilicate

A part of Si⁴⁺ of silicate is substituted by Be²⁺ and Al³⁺.

Hydroxide-Ino-Beryllium-Aluminosilicate

[A(2+)4][(OH)2|Be2Al2Si9O26] [Orthorhombic Cmcm]

Bavenite