Products Description Tourmaline is the general name of tourmaline group minerals. It is a silicate mineral with ring structure of aluminum, sodium, iron, magnesium and lithium. The hardness of tourmaline is usually 7-7.5. Tourmaline crystal rough is mined from the natural tourmaline mine. Tourmaline has unique properties such as piezoelectricity, pyroelectricity, conductivity, far-infrared radiation and release of negative ions. It can be compounded with other materials by physical or chemical methods to produce a variety of functional materials, which are used in the fields of environmental protection, electronics,chemical industry, light industry, building materials and so on. Application 1.High pure tourmaline is the bijou that can be made into jewelry. 2.Purification material for water and air. 3.Tourmaline can be used in agriculture to shorten the period of crops. 4.Interior decoration and other building material. Company Certification Professional Transportation
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