Fireproof materialIn chemical composition fixed premise condition falls, the uniformity that distributings as a result of composition differs with what machine craft, size of the mineral sort that makes goods medium, amount, grain and combinative position are different, of this kind of micromechanism different, create the difference of goods function. For example, the silicon simple product with Si02 same content, because Si02 is in two kinds when can form structure and property to differ below different technology condition mineral -- scale quartz and Fang Shiying, make the certain property of its goods can have difference. Although the mineral composition of goods is certain, size of the bead that follow brilliant, appearance and of distributinging circumstance different, also can have distinct effect to the function of goods. Accordingly, the mineral composition of fireproof material also is the main factor that decides its property.