What is gold mica? How can I tell if it's golden clouds?
The chemical formula of phlogopite is KMg3[AlSi3O10][F, and OH]2. Because the physical and chemical properties of Muscovite is different, so there are many special features, applied in many fields. The industry is mainly using its high electrical insulation and heat resistance, and strong acid and alkali resistance, compressive strength and exfoliation properties of insulating materials for electrical equipment and electrical equipment. Phlogopite are usually yellow, dark brown or black, shiny glass, cleavage is pearl or semi metallic luster, phlogopite can be corroded by concentrated sulfuric acid can be decomposed in concentrated sulfuric acid solution, and produce a kind of emulsion, the chemical composition of the replacement of potassium with sodium, calcium, barium the substitution of titanium, magnesium; Fe, manganese, chromium; fluorine substitution OH, phlogopite mica, mica titanium variants are manganese, chrome mica, mica and other purposes. Special performance produced characteristics.
The chemical composition of phlogopite: KMg 3 [Si 3 AlO 10] (OH, F) 2, isomorphous replacement, so the output of different rocks in biotite, the chemical composition of the gap is very big. There are synthetic phlogopite mica (synthetic phlogopite) and natural phlogopite mica, natural gold deep color phlogopite and phlogopite mica. The characteristics of light is reflected, has perfect cleavage mica yellow brown color and similar gold. The Muscovite difference is that can be decomposed in boiling sulfuric acid, while producing a solution for emulsion, which is not the muscovite and biotite are different; is lighter in color. Phlogopite is mainly produced in the ultra basic rocks such as Kimberley rock, and contact metamorphism of dolomitic marble belt. Impure magnesian limestone suffered during regional metamorphism, can be formed.
