Hydrated Magnesium Silicate (3MgO.4SiO2.H2O) which also known as Talc or Soapstone as its commercial name is an alkali mineral which due to its exclusive characteristics is used as a filler in a vast spectrum of industries. Pure Talc contains 63.5% SiO2, 31.7% MgO and 4.8% H2O. Some unique characteristics of Talc are as follow:
  • Talc is a hydrophobic mineral and is not soluble in water
  • Talc has a high resistance against acids, heat and electricity
  • Melting point of Talc is 1500 C.
  • Talc is the softest mineral with the softness of 1 Mohs.
  • Talc possess the characteristic of Oil Absorption
  • Besides having a stone shape, it feels greasy and soapy
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