{ FeS  }

Make cube dimensions 5.4175 A.
Make atoms full scale.
Color Fe2+ atoms red.
Color S2- atoms yellow.
Place Fe2+ atoms at the corners of the cube.
Place Fe2+ atoms on the faces of the cube.
Place S2- atoms at (0.386,0.386,0.386), (0.614,0.614,0.614).
Place S2- atoms at (0.886,0.114,0.886), (0.114,0.886,0.114).
Place S2- atoms at (0.114,0.114,0.886), (0.886,0.886,0.114).
Duplicate.