When it comes to cosmetics, the safety of mica powder largely depends on its sourcing and processing. Mica is generally considered safe for topical use, especially when derived from reputable suppliers who adhere to industry safety standards. However, concerns have arisen regarding the ethical implications of mica mining, which can impact its safety profile. Unregulated mining practices, often in developing countries, can lead to the inclusion of contaminants in mica powder, such as heavy metals.
It is an indispensable and important raw material in the fields of electric heating equipment, wire and cable, aerospace and so on.
What are the uses of mica
The common characteristics of mica group minerals are: layered silicate minerals, monoclinic crystal system, a few trigonal crystal system, the crystals are pseudo-hexagonal columnar, plate and sheet; The aggregate is scaly and foliaceous. It has a set of extremely complete cleavage, along which it is easy to peel into sheets. Therefore, the shape of mica is usually regarded as sheet.
The mica variety that does not contain iron is colorless in flakes, and the higher the iron content, the darker the color, and the more polychromatic and absorbable it is. According to the different chemical composition and optical characteristics, mica group minerals can be divided into Muscovite subgroup, biotite-phlogopite subgroup and lemica subgroup. The common mica are biotite, phlogopite, Muscovite and so on.