Symmetry group cm with mirror axes (and glide reflections) running diagonally across the minimalistic unit cell. The unit cell is a rhombus but many people prefer to view it as being a centred rectangle instead. This puts the mirrors and glides perpendicular and parallel to the pseudo-sides.
See also:
• rhombus diamond view
• other plane groups
• design index
See also:
• rhombus diamond view
• other plane groups
• design index
