tourmaline slab

 Tourmaline is characterized boron aluminum, iron, sodium, magnesium, lithium ring silicate minerals. Tourmaline has a special thermal and piezoelectric, in the heat, pressure or when excited by other energy will release a lot of negative ions, and water contact would be electrolysis of water occurs, resulting in a negative charge of the hydroxyl ion, so that the water molecules become smaller, and enhance the water solubility and penetration, reducing the redox potential of water, so water was alkaline, but also a variety of dissolved trace elements, widely used in environmental protection, electronics, Japan technology, textiles, ceramics and building materials industries.