Barite is a mineral composed of barium sulfate (BaSO4), named after the Greek word "baryte," meaning "heavy," due to its high specific gravity of 4.3, which is unusual for a non-metallic mineral. Typically white or colorless, barite is the main.

Talc is a hydrous magnesium silicate mineral with the chemical formula Mg3Si4O10(OH)2. While its composition generally follows this formula, slight variations due to substitution can occur. Talc primarily contains magnesium, silicon, and oxygen. It is widely used in powder form.

Chromite is an iron chromium oxide mineral with the chemical formula FeCr2O4, belonging to the spinel group of minerals. It can form a solid solution with magnesiochromite (MgCr2O4), where magnesium substitutes for iron in varying amounts. Chromite is an important.

Calcium fluoride (CaF2) is a mineral that serves as the main source of fluorine. It forms cubic, isometric crystals and cleavable masses, often colorless and transparent when pure, with a glassy luster. Impurities can cause variations in color, and some.