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.
The crystal structure of zircon is tetragonal crystal system. The natural color of zircon varies between colorless, yellow-golden, red, brown, blue, and green. Colorless specimens that show gem quality are a popular substitute for diamond and are also known as Matura diamond.ts chemical name is zirconium silicate and its corresponding chemical formula is Zr SiO4. A common empirical formula showing some of the range of substitution in zircon is (Zr 1ây, REE y)(SiO 4) 1âx (OH) 4xây. Zircon forms in silicate melts with large proportions of high field strength incompatible elements.