Talc is a type of hydrotherm alteration ore. After alteration, magnesite ore will becomes to talc, therefore talc is often seemed like olivine, enstatite, hornblende,. AP 42, CH : Talc Processing EPA. Over 95 percent of the talc ore produced in the United States comes from open pit .
The Bureau of Mines investigated a method of flocculation and dewatering that allows for disposal of the solid talc waste in landfills and reuse of the water. The dewatering technique was initially developed by the Bureau for treating phosphatic clay wastes produced during the mining and beneficiation of phosphate in Florida. Get price