- Sep 30, 2017 -
The color of slate varies with the impurities it contains, containing iron is red or yellow, carbonaceous black or gray, calcium-containing in the case of hydrochloric acid will bubble, so generally by its color naming classification, such as green slate, black slate, calcareous slate and so on. Artificial stone is made of unnatural mixture, such as resin, cement, glass beads, aluminum powder and so on add gravel binder. Artificial stone (also known as "man-made marble"). Artificial stone 30 years ago in the United States, China's earliest use of man-made stone products as decorative materials are in the 90 's mid-term some coastal developed cities, a few years later widely popular.