Hematiti

Hematiti is a mineral composed of iron(III) oxide (Fe2O3). It is one of the most common iron-bearing minerals and a primary source of iron ore. Its name is derived from the Greek word for blood, "haima," due to its characteristic deep red color when in powdered form. Hematiti crystals are typically black or grayish-black in their massive form, but they exhibit a reddish-brown streak.

This mineral forms in a variety of geological environments. It is found in igneous rocks, sedimentary rocks, and metamorphic rocks. It often occurs in association with other iron oxides and hydroxides. Hematiti deposits are widespread across the globe, with significant reserves found in Australia, Brazil, China, India, and the United States.

The primary use of hematiti is as an ore for the production of iron and steel. It is also used as a pigment in paints, cosmetics, and inks, contributing to its reddish-brown coloration. In some applications, it is utilized as a ballast material due to its high density. The mineral's magnetic properties can vary, with some forms exhibiting weak magnetism while others are non-magnetic.