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X represents large interlayer cations, such as K+, Na+, Ca2+, Ba2+, Rb+, Cs+, etc. Y represents octahedral cations, such as Al3+, Fe2+, Mg2+, Cr3+, Ti4+, Fe3+, etc. Z is mainly Si4+ and Al3+; The ideal ratio of the additional anion (OH)- to (O)2- is 2:10, and (OH)- can be replaced by F- and Cl-. Most mica contain 4% to 5% water. Therefore, although they may be called mica, the chemical composition of different mica may be very different, for the purpose of research, we collectively refer to the minerals with this type of characteristics as mica group minerals.  

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pearlescent pigment powder_pearlescent pigment powder

One of the most important steps in ethical mica sourcing is increasing transparency and traceability throughout the supply chain. Some beauty brands have implemented rigorous systems for tracking the origins of their mica, working directly with trusted suppliers who are committed to ethical practices. These systems often involve conducting audits, visiting mines, and verifying that labor standards are met. Brands such as L’Oréal, Estée Lauder, and Unilever have taken significant steps to commit to responsible mica sourcing by investing in more transparent supply chains and working with certified suppliers.

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pearlescent pigment powder_pearlescent pigment powder