| Place of Origin |
Guangxi China (Mainland) |
| Brand Name |
M&C |
| Shape |
black or dark green powder |
TourmalineA: Color: less than 200mesh, take on deep black-black200-1250mesh, take on deep grey-grey25000 mesh, take on offwhiteB: Granule: 30-25000meshC: Grade: Choose the most high-quality raw materials, deal with through the surface, make the grade improve by 98%.D: Chemical component:SiO2: 34.81% Al2O3: 35.10% Fe2O3: 10.18% B2O3:11.02% MgO:4.70%Na2O: 0.91% K2O:0.04% CaO: Minim P2O5:0.22% TiO2:0.26% FeO: 1.35%Application:Thetourmaline have the thermoelectric effect.