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Talcum
Talcum has the chemical composition of Mg3(Si4O10)(OH)2. It is flake powder of various colors such as white, ivory-white, or French gray with a pearl-like or fatty-like luster. Talcum has a trioctahedral structure, thus it is very soft and has a soapy feel. Talcum has a hardness of 1.0. It has good electrical insulation, and heat resistance, and does not act with acid and alkali.
Talcum
Talcum has the chemical composition of Mg3(Si4O10)(OH)2. It is flake powder of various colors such as white, ivory-white, or French gray with a pearl-like or fatty-like luster. Talcum has a trioctahedral structure, thus it is very soft and has a soapy feel. Talcum has a hardness of 1.0. It has good electrical insulation, and heat resistance, and does not act with acid and alkali.
