The mineral turquoise is formed by a chemical reaction which occurs when water containing specific minerals such as copper and aluminum leak through a rock. It forms in veins, which later then turn into a clump of turquoise.
The Navajos and other Native American shamans used Turquoise for cloud-busting (initiating much needed rain) by throwing it into a river while praying to the rain god.
According to Hindu and Persian mystics, it was very lucky to have a Turquoise on hand at the time of a new moon.
Apaches believed turquoise to aid the warrior or hunter in the accuracy of his aim. If the turquoise was attached to a gun or bow, the shot sped from the weapon would go straight to its mark.