A soft mineral consisting of hydrated magnesium silicate: Talc feels like soap and possesses a gray, green or white color.

Talc is used as an ornamental and heat, acid and electrically-resistant stone (soapstone).

Talc is used as counter tops, electrical switchboards, carvings, etc. It is also used as an ingredient in paints, rubber, roofing materials, ceramics, and insecticides. It is most commonly known as the primary ingredient in talcum powder.

1. A soft mineral consisting of hydrated magnesium silicate: Talc comes from igneous and metamorphic rocks and is used as "talcum powder".

Talc is a fine-grained white, greenish, or gray mineral that has a soft soapy feel and which is used in talcum and face powder, as a paper coating, and as a filler for paint and plastics.
2. Etymology: from Middle French talc and perhaps from Spanish talco and Medieval Latin talcum. "talc" (early 14th century), both from Arabic talq, from Persian talk, "talc".