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Take pearlescent pigments as an example, pearlescent pigments are a class of pigments with pearl luster, which are deposited on the substrate (generally natural mica, synthetic mica, glass sheet and other sheet-like materials) above a layer or alternately deposited multiple layers of metal oxides or non-metallic oxides and formed a flat sandwich body with a structure similar to sandwich. Due to the difference in refractive index between the substrate and the oxide deposited on its surface and each oxide, when the light shines on the surface of the pearlescent pigment, the incident light will be refracted and reflected at the interface of each layer of the pearlescent pigment, and the color of the pearlescent pigment that people see is the result of the superposition of light after multiple refractions and reflections of the light, that is, the interference phenomenon of light.

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matte mica powder_mica powder polymer clay

In the case of mica powder pearl pigment, the importance of ethical sourcing cannot be overstated. The mineral is primarily mined in countries like India, Madagascar, and China, where unregulated mining practices are common. These practices often exploit vulnerable workers, including children, who are paid meager wages and subjected to dangerous working conditions. Beyond the human rights issues, unregulated mining also leads to environmental degradation, including deforestation and soil erosion.

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matte mica powder_mica powder polymer clay

In certain formulations, binders and fillers may be added to enhance the texture and performance of mica powder. Common binders include natural gums and resins that help improve adhesion when used in cosmetic products. Fillers can modify the consistency and bulk of the product, making it easier to apply and blend with other ingredients. Examples of fillers include talc or other mineral-based substances that can provide a smooth application.


ingredients in mica powder

ingredients


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matte mica powder_mica powder polymer clay