Mudstone, also known as ancient pottery stone, is produced all over the country. It is famous for its production in Xinjiang and the Yellow River beach. In recent years, the Gobi mud on the Gobi Desert in Xinjiang is more cognizant than the modern market, so everyone knows Gobi mudstone. . The mudstone is composed of argillaceous rock, the texture is dense and delicate, the hardness is about 5 degrees; the shapes are different, like flat strips or leaves; most of them are brown, reddish brown, blush, etc., and yellow brown, Coffee, black, etc., also has a yellow base with blue and white, less solid color; the block is several centimeters to tens of centimeters, most of which have at least one side with water or grass texture, pictographs are rare; stone surface is fine, moist, brittle There is a thin patina, which feels very good, but the outer skin is easy to break; some stones contain coelenterate fossils. The formation of mudstone was that the Devil City at that time contained a large amount of sediment, which was formed by the deposition of fine muddy particles in the lake water due to the disappearance and evaporation of the lake water. These mudstones have been tens of millions of years of movement through the earth's crust, and they are squeezed and lifted to the surface. Under the special geological and climatic conditions of the South Lake Gobi, it was finally formed by the sand of nature. Fire Retardant Non Woven Fabrics Non Woven Material,Fire Non Woven Fabrics,Fire Retardant Non Woven Fabrics,Fire Retardant Commercial Fabrics Yizheng fengyisheng nonwoven co., ltd. , https://www.fys-nonwoven.com