Talc is a hydrated magnesium silicate and is the softest mineral in the world. It is a natural material of white to grayish white colour and generally occurs in two morphologies, either in macro or microcrystalline. Most talc deposits are mined, extracted, sorted depending on the talc content and brightness and milled to obtain the right particle size. Talc is odorless, impalpable, inert, water repellent, platy mineral and shows an affinity for organic substances.
Luzenac Talc products are purified, bacteria controlled grades and are manufactured according to the IPEC GMP guide for bulk pharmaceutical excipients. They are heat-treated (sterilized) to decontaminate them before being packaged. Additionally it is extra-white.