AM_Kaliborite Formula: K Mg2 B12 H19 O30 Name: Kaliborite Unit cell: 18.572 8.466 14.689 90.0 100.02 90.0 , V=2274.33 Space group: C12/C1 (15)

Burns P C , Hawthorne F C , The Canadian Mineralogist , 32 (1994) p.885-894, Kaliborite: An example of a crystallographically symmetrical, hydrogen bond