Name Chemical composition Specific gravity Refractive index Color
Lithium tourmaline Na Al, Li 3.03-3.10 1.615-1.655 Pink, red, blue, yellow, colorless.
Calcium lithium tourmaline Ca Al, Li 3.02 1.637-1.621
Two different origins of tourmaline have different structures:
Xinjiang region: main tourmaline It is a geode pegmatite, mainly produced with lepidolite, emerald, crystal, topaz, purple apatite, yellow-green spodumene, aquamarine, etc.
Brazil: Tourmaline is mainly produced from placer mines, mainly produced with topaz, amethyst and diamonds.
Comparison of negative ions and far infrared
Name (original ore) negative ion far infrared
Tourmaline produced in Xinjiang 2620 pieces/cubic centimeter 85
Brazilian tourmaline 3850 pieces/cubic centimeter 88
Processing: The processing equipment is generally a combination of jet mill and grinder. It is difficult to achieve the nanometer level with just one piece of equipment. If you want to get the ideal nanometer Particle size must have the following procedures: product crushing - air flow grinding - wet grinding - drying - air flow grinding - sealed packaging (equipment: QT-6A crusher, QLM5A40 air flow mill, SG-1SPNM grinder)
Particle size: According to the application in different industries, the particle size is generally 325 mesh-1250 mesh in health care products, 2000-5000 mesh in coatings, 12500-25000 mesh in textiles, etc. At the same time, special processing in other industries can be performed according to customer requirements.
Main application industries: textiles, cosmetics, coatings, medical equipment, medicine, health products, underwear, bedding, fuel savers, electrical plywood, ceramics and other high-tech fields.