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.
Zircon may be whitish, yellow, greenish, or violet-blue under X-rays. 1  Red to orange red: inert to strong, yellow to orange (SW). 2  Yellow to orangish yellow: inert to moderate yellow to orange (LW and SW). 3  Green: usually inert.  Blue: inert to moderate, light blue 1  (LW). Brown: inert to very weak red  (SW).