Tourmalines

Crystal tourmalin composition complex, characterized with boron aluminium lithium, sodium, iron, magnesium, the annular structure silicate salt mine. Generally originated from granite pegmatite type and high temperature, pneumatolytic hydrothermal type deposit is a typical high temperature gas into one of the minerals. 

Crystal of tourmaline tourmaline is crystallization condition good, regular shape, a higher use value.

Under the condition of natural black tourmaline in reducing atmosphere, after heat treatment can be higher than that of far-infrared ceramic powder than infrared emissivity values, the infrared radiation peaks, the corresponding relationship between wien's law has the very good peak wavelength of the radiation at room temperature is about 9.5 um. Strong infrared radiation characteristics of natural black tourmaline has aroused people's wide concern. Japan has been the use of natural black tourmaline developed a series of technology products, including cosmetics, air purification, radiation protection, and other products. A Japanese company an invention patent is about application of tourmaline in rayon fiber, namely the candidate silk fiber containing 0.05% ~ 2.0%, tourmaline particles particle diameter less than 0.3 um. This fiber can promote the blood circulation effectively strengthen the body's physiological function, the specific process is will contain tourmaline particles (rayon fiber evenly dispersed therein) solution, spinning and weaving into fiber shape, and electret fiber system.

Because of tourmaline mineral crystal with piezoelectric properties, the feature is widely used in radio industry, tourmaline is available as a wavelength adjuster, the polaroid polariscope. Crystallization in good condition, no bending, no crack, tourmaline, can make stamping with piezoelectric determination of air and water, can also be used in sonar components, determination of materials, standard parts, components etc on instrumentation and industrial equipment, such as power generation controller for skin epidermis, designed to allow the light through the drug area, lead to fluctuations in light direction. Also used for containing parabolic reflection direction guided wave field. Also used for containing parabolic reflector and contain tourmaline crystal electric sensor output current. Tourmaline with many scientific and industrial equipment, is the electrical pliers, can show the polarization of light. Because of tourmaline are both pyroelectricity and piezoelectricity, namely when heating or compression can generate electricity, thermal dose meter is a measuring instrument of radiation intensity of gas early, it is also depends on the thermal characteristics of tourmaline.

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