Ecandrewsite
Mitchell R H, Liferovich R P
The Canadian Mineralogist 42 (2004) 1871-1880
The pyrophanite-ecandrewsite solid-solution: crystal structures
of the Mn1-xZnxSiO3 series (0.1 <= x <= 0.8)
Sample: x = .8, ilmenite structure
_database_code_amcsd 0006000
5.08849 5.08849 13.9937 90 90 120 R-3
atom      x      y      z  occ Biso
Mn        0      0 .36134   .2   .4
Zn        0      0 .36134   .8   .4
Ti        0      0 .14687        .6
O    .31952  .0274  .2430        .5