Tourmaline (Tourmaline) semiprecious stone, which crystallize the problem of boron silicate minerals and other elements such as potassium, sodium, aluminum, iron, lithium and magnesium. It is electric when the temperature regularly, but the electrical characteristics appear when the rise or fall in temperature. Tourmaline occupies seventh grade ladder hardness which classifies gems according to the degree of severity.
Also, this stone is another benefit back to the geometry of the arrangement where molecules used in the polarization of the light
Also, this stone is another benefit back to the geometry of the arrangement where molecules used in the polarization of the light
