Chalk Industrial Grinding Machine
Chalk is a soft, white, porous sedimentary carbonate rock, a form of limestone composed of the mineral calcite. Calcite is calcium carbonate or CaCO3. It forms under reasonably deep marine conditions from the gradual accumulation of minute calcite shells (coccoliths) shed from micro-organisms called coccolithophores. Flint (a type of chert unique to chalk) is very common as bands parallel to the bedding or as nodules embedded in chalk. It is probably derived from sponge spicules or other siliceous organisms as water is expelled upwards during compaction. Flint is often deposited around larger fossils such as Echinoidea which may be silicified (i.e. replaced molecule by molecule by flint).
Chalk as seen in Cretaceous deposits of Western Europe is unusual among sedimentary limestones in the thickness of the beds. Most cliffs of chalk have very few obvious bedding planes unlike most thick sequences of limestone such as the Carboniferous Limestone or the Jurassic oolitic limestones. This presumably indicates very stable conditions over tens of millions of years.
Chalk Industrial Grinding Machine can be used to grind barite, calcite, kalium, steatite, marble, glass, feldspar, etc. superfine grinding mill is widely used in the metallurgy, building, chemical industry, and mining field..
Chalk Industrial Grinding Machine Suppliers
Depending on the producing and researching experiences of decades, Fujian Fengli Machinery has become a major ultrafine powder processing equipment manufacturer and export base.
Office Add: Y68# Longzhou Industrial Park Industrial West Road Xinluo District Longyan 364000 Fujian China
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