The moon is a feminine symbol that represents the rhythm of time as it embodies the cycle. The phases of the moon symbolize immortality and eternity, enlightenment. This is a Moon Phase crystal grid made out of Birchwood. These are made to order; you can choose between approximately 6, 8, 10, 12, and 14 inches in diameter and 1/4″ thick. This is just for the grid. Stones sold separately.