Pyrophanite
Liferovich R P, Mitchell R H
Physics and Chemistry of Minerals 32 (2005) 442-449
Rhombohedral ilmenite group nickel titanates with Zn, Mg, and Mn:
synthesis and crystal structures
_database_code_amcsd 0008977
5.1386 5.1386 14.2857 90 90 120 R-3
atom     x     y     z Biso
MnA      0     0 .3602  .25
TiB      0     0 .1478  .30
O1   .3200 .0292 .2426  .16