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Borosilicate

A part of Si4+ of silicate is substituted by B3+.

Neso-Borosilicate
[A(2+)][BSiO5] [Trigonal P3]
Stillwellite-(Ce)
Soro-Borosilicate
[A(2+)2][C][BSiO7] [Tetragonal P(-4)2m]
Okayamalite
Hydroxide-Soro-Borosilicate
[A(2+)2][B(2+)][C(3+)2][OH|BSi4O15] [Triclinic P(-1)] Axinite group
Axinite-(Fe)
Axinite-(Mg)
Axinite-(Mn)
Tinzenite
Hydroxide-Chloride-Cyclo-Borosilicate
[A(2+)4][B(3+)4][OH|Cl|B2Si8O28] [Orthorhombic Pmmn]
Nagashimalite
Oxide-Ino-Borosilicate
[A(+)4][B(2+)][C][O2|(BSi5O14)2] [Monoclinic C2/m]
Leucosphenite
Ino-Phyllo transitional
Sorosilicate-Ino-Borosilicate
[A(2+)5][Si2O7|BSi2O9],4H2O [Triclinic P(-1)]
Oyelite
Hydroxide-Phyllo-Borosilicate
[A(2+)][OH|BSiO4] [Monoclinic P2/c]
Datolite
[A(2+)4][B(3+)2][C(3+)][][(OH)2|B4Si4O22] [Monoclinic P2/a]
Hellandite-(Y)
Tecto-Borosilicate
[A(2+)][B2Si2O8] [Orthorhombic Pnam]
Danburite