- Chemical Name:Magnesium Silicate
- CAS Number:13776-74-4
- Synonyms:Magnesium metasilicate (MgSiO3), Magnesium silicate (Mg2(SiO3)2), Magnesium silicon oxide (MgSiO3)
Talc is a mineral group VIII (silicates), according to the classification of Strunz, white to blue gray. In the Mohs scale is taken as a pattern of least hardness, assigning him conventionally value 1. To touch is so greasy or soapy that can be scratched with a fingernail.