AM_Orientite_1
Formula: Ca4 Mn6.64 Si8 O32 H7
Name: Orientite
Unit cell: 9.044 6.091 19.031 90.0 90.0 90.0 , V=1048.36
Space group: P2MM (25)

Mellini M , Merlino S , Pasero M , American Mineralogist , 71 (1986) p.176-187, X-ray and HRTEM structure analysis of orientite