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Hoelzel Classification

6 Borates

6.B Diborates

6.BB Nesodiborates with double tetrahedra B2O(OH)6 - 2(2T)

6.BB.1 Pinnoite-Group

Pinnoite MgB2O4·3H2O tetragonal P42 4 6.BB.100
Pentahydroborite CaB2O(OH)6·2H2O triklin P1 1 6.BB.140



Mineralsystematik-Übersicht