The softest rock on the planet, talc is an ultra-versatile mineral valued for its diverse properties by a wide range of applications.
Highly prized properties
Talc is a hydrated magnesium silicate. Talc deposits form from the transformation of high magnesium rocks by siliceous hydrothermal fluids. Most talc originates from the alteration of dolomite or ultramafic intrusive rocks. Following this process, talc is always found in combination with other mineral(s). Carbonates and chlorite are the most common associated minerals.
Each talc deposit has a unique morphology and mineralogy, but all talcs exhibit the following unique properties: softness, water repellency, chemical inertness, platyness, and an affinity for organic substances.
These properties make talc a highly prized multi-functional filler and process enabler in an array of applications from plastics to paper, ceramics to paint.
- Softest mineral on earth (1 on Mohs’ scale)
- Platy, lamellar
- Oleophilic (natural affinity with oils)
- Relatively inert
Talc is used in a large number of cosmetic
products such as antiperspirants, powdered foundation, feminine hygiene products or baby care, for its multiple properties and benefits. It is used for its absorbing properties and transparency. It gives a soft and silky finish to the skin. In formulation, it improves fragrances long lasting, and allows a better adherence of textures and an efficient pigments dispersion.
, talc is an ideal, natural solution for replacing less environment-friendly TiO2 and for improving the mechanical and optical properties of coatings.
In the pulp
industry, talcs are excellent solutions for avoiding deposits enabling mills to work in closed water circuits and optimizing prime resources.
Used in ceramic tiles
, talc improves the vitrification process, allowing producers to reduce firing temperatures and shorten firing cycles.
, talc-based solutions can provide excellent natural alternatives to chemicals for protecting fruit from the sun’s rays and disease. They are ideal for organic farming. Talcs also make the effective flow and anti-caking agents for fertilizers.