How to identify quartz stone quartz stone is good or bad four, the standard authentication quartz stone as identification standard quartz stone: 8, water absorption: After less than 0.04% quartz stone materials, sprinkle a little water on the surface of quartz observed 24 hours color white case without artificial quartz stone quartz stone procurement knowledge chap market situation and development trend of the market so popular "Quartz" false quartz based mainly Kai Sa quartz, the most obvious phenomenon is to use glass instead of quartz Dongguan quartz, quartz crystal, glass is not a crystal, glass glassy material, quartz is the atomic crystal. Quartz structure | Kai Sa Building Materials | quartz provided by the Dongguan City Kai Sa Building Materials Co., Ltd. Dongguan Kai Sa Building Materials Co. (www.kaisa-stone.com) quality of service and products, continue to receive the recognition and trust of new and old customers and the industry. Our company is a certified member of the whole alliance network operators, business alliance customer service icon on the page, you can talk directly with our customer service staff, to our future cooperation happy!