Sell Talc powder

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Talc is a metamorphic mineral resulting from the metamorphism of magnesian minerals such as serpentine, pyroxene, amphibole, olivine, in the presence of carbon dioxide and water. This is known as talc carbonation or steatization and produces a suite of rocks known as talc carbonates.

Talc is primarily formed via hydration and carbonation of serpentine, via the following reaction;

serpentine + carbon dioxide -> talc + magnesite + water
2Mg3Si2O5(OH)4 + 3CO2 -> Mg3Si4O10(OH)2 + 3 MgCO3 + 3 H2O
Talc can also be formed via a reaction between dolomite and silica, which is typical of skarnification of dolomites via silica-flooding in contact metamorphic aureoles;

dolomite + silica + water -> talc + calcite + carbon dioxide
3CaMg(CO3)2 + 4 SiO2 + H2O -> Mg3Si4O10(OH)2 + 3 CaCO3 + 3 CO2
Talc can also be formed from magnesian chlorite and quartz in blueschist and eclogite metamorphism via the following metamorphic reaction:

chlorite + quartz -> kyanite + talc + water