How to identify quartz stone quartz stone is good or bad section of sleek quartz countertops, turbidity, corrosion intolerance, reflective bad. Or join granite, marble. Granite, marble and quartz particles are not the same particles of quartz, quartz grains in crystal form, thorough, it has a crystal texture. The granite, marble particles Kai Sa cloudy quartz, opaque, low hardness of quartz stone structure granite surface Mohs hardness of only 4-5, marble only 2-3. Thus causing other domestic quartz not scratch, so they are used in the factory coating approach characteristic quartz and quartz stone has the characteristic of Reason 4, fuel vain natural quartz crystal is a typical refractory material having a melting point of up to above 1300 degrees, 94% quartz completely flame made of natural quartz, with the temperature characteristics of the artificial stone countertops can match. Quartz plate, Kai Sa Building Materials (certified), quartz stone supplied by Kai Sa Building Materials Co., Ltd., Dongguan City. Dongguan Kai Sa Building Materials Co. (www.kaisa-stone.com) is Dongguan, sandstone leaders, over the years, the company is implementing the scientific management, innovation and development, the principle of honesty and trustworthiness, and satisfy customer needs. Kai Sa leader in building materials with the staff warmly welcome all inquiries negotiations to create Kai Sa Building Materials better future.