... origin for detrital mica all over China. Heat resistance, insulation. Mica is mainly crystallized into monoclinic crystal, it is ... stability; it is heat resistant and also has excellent insulation, no matter how fragmental, it always stay at flake ... Mica powder can be widely used in architecture, building materials, insulation, paint, coatings, pigments, fire, plastic, rubber, ceramics, oil drilling, ...