TALC
TALC Talcum [14807 96 6] DEFINITION Powdered selected natural hydrated magnesium silicate Pure talc has the formula Mg3Si4O10 OH 2 Mr It may contain variable amounts of associated minerals among which chlorites hydrated aluminium and magnesium silicates magnesite magnesium carbonate calcite calcium carbonate anddolomite calciumandmagnesiumcarbonate are