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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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mica based pearlescent pigment fda_mica based pearlescent pigment fda

Mica is a naturally occurring mineral that has been renowned for centuries due to its unique properties, such as heat resistance, electrical insulation, and natural shimmer. It is widely used in various industries, from cosmetics to electronics. However, there are two main types of mica natural mica and synthetic mica. Understanding the differences between these two types is essential for both consumers and manufacturers as they navigate the myriad of applications in which mica plays a critical role.


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mica based pearlescent pigment fda_mica based pearlescent pigment fda