The transparent stone skin has a layer of gold mica. What kind of stone is it?
The mica mine in Hebei is located in the Lingshou County in the middle of Taihang mountains. The formation of Lingshou County for double Swire rocks, rock is rich in mineral mica, the Department of geological exploration, broken mica ore reserves of 1 million 700 thousand tons, high grade, good quality, is the country's largest source of broken mica, and because of the earlier development, become the country's largest mica processing base and the largest export of mica ground.
Gold mica (Phlogopite), one of the Muscovite minerals, is an aluminum silicate with iron, magnesium and potassium. If the iron in the mica component is not much, it can be used as an electrical insulating material and therefore play an important role.