Labyrinth types: Daedalus can create unicursal Labyrinths commonly used as a tool for meditation and spiritual growth, just as it can Maze puzzles: Chartres replica, Classical, Extended Classical, Cretan, Man in the Maze, Extended Man in the Maze, Custom circuits.
Zircon is a zirconium silicate mineral. It is the principle source of the element zirconium (Zr) 1  usually small and inclusion-rich.  Zircon is highly resistant to weathering (maybe the most resistant of any mineral) This, and its high specific gravity, favor its concentration in placer deposits and alluvial gem gravels.
By Anne Marie Helmenstine, Ph.D. Cubic zirconia or CZ is the crystalline manmade form of zirconium dioxide, ZnO 2. Zirconium dioxide is also known as zirconia.Ordinarily, zirconia would form monoclinic crystals. A stabilizer (yttrium oxide or calcium oxide) is added to cause zirconia to form cubic crystals, hence the name cubic zirconia.y Anne Marie Helmenstine, Ph.D. Cubic zirconia or CZ is the crystalline manmade form of zirconium dioxide, ZnO 2. Zirconium dioxide is also known as zirconia.