| Element | SiO₂ | Al₂O₃ | Fe₂O₃ | MgO | K₂O | CaO | Na₂O |
| Content (%) | 35.26-51.56 | 10.65-29.88 | 11.5-25.8 | 11.42-19.45 | 6.5-11.89 | 0.4-0.6 | 0.6-0.7 |
Plastic
Rubber
Paints
Coatings
Masks
Ceramics
Oil drilling
Cosmetics
4-6 mesh
10-20 mesh
20-40 mesh
40-60 mesh
325 mesh
Building materials, firefighting, extinguishing agent, welding electrodes, paper making and asphalt paper. It can be used as functional filler to plastics, coating production, paint and rubber. At present, biotite mica is very popular in non-woven fabrics for face masks. As a raw material, biotite mica is first made into masterbatch. Then it is produced into non-woven fabrics with some antibacterial materials. And these non-woven fabrics will eventually made into face masks. Biotite has the functions of deodorizing, antibacterial and far-infrared rays. Therefore, masks made of biotite can deodorize more than 99%.
