U+2630 TRIGRAM FOR HEAVEN (☰)
U+2631 TRIGRAM FOR LAKE (☱)
U+2632 TRIGRAM FOR FIRE (☲)
U+2633 TRIGRAM FOR THUNDER (☳)
U+2634 TRIGRAM FOR WIND (☴)
U+2635 TRIGRAM FOR WATER (☵)
U+2636 TRIGRAM FOR MOUNTAIN (☶)
U+2637 TRIGRAM FOR EARTH (☷)