Stone name: Ash-black Sandstone construction material
Main color: Ash-black (sometimes with a bluish tint)
Country of Origin: China
Classification: Sandstone
Sandstone is characterized by high chemical and physical properties, due to which it is not afraid of moisture, resistant to weather changes, sharp thaws and severe frosts. The structure of the stone is unchanged for many years.
The siliceous Sandstone rocks have the highest strength, the stones with dolomite, limestone layers – the smallest. High fire resistance characteristic of quartz Sandstone with a silica cement.
In the construction of Sandstone, in contrast to the expensive granite and marble, does not require large expenditures. In facing, internal and external, laying on a cement mortal is allowed.
