Magnesium rich minerals often become talc through hydrothermal alteration, so talcum is often a mineral illusion of olivine, pyroxene, hornblende and tremolite. Talc is a common silicate mineral. It is very soft and has a smooth handle. Ten minerals have been selected to represent ten hardness levels, called the Moss hardness, in which the first (i.e. the softest) is talc. Soft talc can replace white chalk with white marks. Talc is usually lump, leaf, fibrous or radial, white, gray-white color, and will contain other impurities and with a variety of colors. Talc is a talc talc mineral talc, mainly containing hydrated magnesium silicate. The crystal structure of talc belongs to monoclinic system, which is formed by the combination of magnesium and silicification in hot water solution and rock. Talc is a type of hydrotherm alteration mineral. After alteration, magnesite ore will becomes to talc, therefore talc is often seemed like olivine, enstatite, hornblende, tremolite. Talc is normal silicate minerals, and it is soft and creamy. Talc is the softest ore, Moh's hardness 1. Soft talc could be used to draw like chalk does. Talc exists in bulk, blade, threadiness or radial shape present white or gray, talc could present different color as the impurity contained, and hydrated magnesium silicate is the main element.

Talc Processing technology

Talc is generally processed into different fineness by mill before further application, and with the continuous expansion of the application of talc, the production and sales of talc grinder are also booming. Vanguard's grinder for talc and other materials can accept less than 20 mm, Moh's hardness below 6 level of non-flammable and explosive materials. Because of the great change of the main machine's roller and the roller assembly, the material has to be grinded many times from top to bottom, which makes full use of the centrifugal force of the grinding roller and has a large contact area with the grinding ring, the fine powder can be produced. The fineness of the finished product is mainly distributed between 5-45 microns.
Talc has wide application area, for example, refractory matter, paper making, padding, insulating material, lubricant, pesticide absorber, leather coatings, and carving material. According to its application, talc could be divided into cosmetic grade, medicine and food grade, coating grade, paper making grade, plastic grade, rubber grade, cable grade, ceramic grade, fine talc powder, waterproof material grade, and talc products application area is very wide.

Application fields Through the deep processing, Talc can be widely used in the following industries.