#	Binary Tetrahedral Group
#
#	The quotient of the 3-sphere by the binary tetrahedral group
#	gives the octahedral space.
#	The matrix elements are rational numbers.

  0.5 -0.5 -0.5  0.5
  0.5  0.5 -0.5 -0.5
  0.5  0.5  0.5  0.5
 -0.5  0.5 -0.5  0.5

  0.5 -0.5 -0.5 -0.5
  0.5  0.5  0.5 -0.5
  0.5 -0.5  0.5  0.5
  0.5  0.5 -0.5  0.5
