Tetrataenite
Clarke R S, Scott E R D
American Mineralogist 65 (1980) 624-630
Tetrataenite - ordered FeNi, a new mineral in meteorites
Locality: Cape Town iron meteorite
_database_code_amcsd 0000787
2.533 2.533 3.582 90 90 90 P4/mmm
atom  x  y  z
Fe    0  0  0
Ni   .5 .5 .5