The formation process of stone SLATE

The formation of Slate is the same as sandstone, is due to the earth's crust movement, sand and cementation (siliceous material, calcium carbonate, clay, iron oxide, calcium sulfate, etc.) after a long period of great pressure compression bond formed a sedimentary rock.The current color is mainly light green, black, light green, pink, brown brown, light gray, yellow and so on.The SLATE is not only rich in plate, and hard texture, color and luster, low water absorption, no radiation pollution, with matt, anti-skid, acid and alkali resistance, refractory cold resistance, weathering resistance, good struggle and other characteristics.

The main mineral composition of mica, chlorite, quartz, a small amount of pyrite and calcite.The new SLATE has higher sand content, more calcium and pyrite, and is hard lithology.The orebodies are calcareous silky SLATE and fine silky SLATE, and the thickness of single layer is 1-5cm.

Shallow metamorphic rocks are formed by clayey, silty sedimentary rocks or intermediate-acid tuffaceous rocks and tuffaceous sediments through slight metamorphism.Black or grayish black.The lithology is dense with plate-like cleavage.There is often a small amount of sericite and other minerals on the board, so that the board surface slightly shows the silk gloss.There is no obvious recrystallization.Some mineral grains such as quartz, sericite and chlorite with uneven distribution can be seen under the microscope, but most of them are cryptocrystalline clay minerals and carbonaceous and iron powder.With variable residual structure and speckled structure.

The rock protolith with plate-like structure is mainly argillaceous rock, argillaceous siltstone and intermediate-acid tuff.SLATE is a low grade product of regional metamorphism, with low temperature and homogeneous pressure, which is mainly affected by stress.The metamorphic rocks are mainly composed of argillaceous and silty, and the SLATE with dense structure and SLATE can be used as building stone, tablet, slab and other stone materials.

Over the years, many facts have proved that natural stone has become one of the most popular flooring materials.They have some potential properties that make them ideal for bathroom floors.SLATE, as a natural stone, has inherent properties that make it an ideal bathroom floor material.