The mica is one kind of rock forming mineral, usually assumes the false six sides or the diamond plate-type, the laminated shape, the columnar crystal form. Color along with chemical composition change, but different, mainly increases along with the Fe content changes the depth. The mica characteristic is the insulation, thermostable, has the gloss, the physical chemistry stable property, has good heat-insulated, the elasticity and toughness. Uses what in the industry to be most is the white mica, next is the bronze mica. Its widespread application in chemical industries and so on building materials profession, fire profession, fire-extinguishing, welding rod, plastic, electric insulation, papermaking, bituminized paper, rubber, pearlescent pigment.

For medicinal purposes: The mica, taste Gansu, the nature is even, mainly treats the muscle deceased person same not to feel likely. The wound feels cold in common cold gives off heat, is similar to the body sits on the ship, has a dizzy spell, has builds eliminates common cold, the substantial five internal organs, increase the birth ability, causes the eye to be bright, long clothing body facile clever, extension life. Other name cloud bead, cloud China, cloud UK, the cloud fluid, the cloud granulated substance, the phosphorus stone, produce in the mountain the canyon place