Aphanitic qualitative models are: microcrystalline composed of fibrous pulp stone (chalcedony); colloid causes agate; quartz account fibrous asbestos from tiger eye stone. ③ hidden qualitative seed crystal composed by granular ceramics, mixed materials often contain other minerals, opaque, mainly flint gray to black (commonly known as flint). Jasper, because it contains iron impurities or dark red, green, yellow, green and other colors. Both fear is fine flower quartz rust water, but acrylic can be polished off, but in addition to quartz can not afford to absorb the (natural granite marble is also true). Many people choose quartz stone countertops have concerns about radiation quartz stone factory, in fact, the use of high-quality selection of natural quartz stone quartz stone countertops cabinets crystalline mineral quartz, SiO2 content of more than 99.9%, and go in the manufacturing process miscellaneous purification, the raw material does not contain any heavy metal impurities may lead to radiation, 94% of quartz crystals and other resin additives makes quartz no danger of radiation contamination. Quartz stone quartz stone factory _ _ Kai Sa Building Materials provided by Kai Sa Building Materials Co., Ltd., Dongguan City. Building Materials Co., Ltd., Dongguan City, Kai Sa (www.kaisa-stone.com) strong, credible, in Dongguan, Guangdong sandstone industry has accumulated a large number of loyal customers. The company better work attitude and constantly improving Kai Sa innovative ideas will lead into the glorious building materials and you work for a better future!