Hematite

Hematite is a mineral that is the chief ore of iron. It is a common mineral and is found in many parts of the world, including the United States, Canada, Brazil, and China. Hematite has a metallic luster and a reddish-brown streak. It is often called "bloodstone" because of its red color.

Hematite is used as a pigment because of its red color. It is ground into a fine powder and used to make red paint and dyes. Hematite is also used for jewelry, such as necklaces, bracelets, and earrings. It is a popular gemstone because of its metallic luster and beautiful color.

Hematite is an important ore of iron. It is used to make steel, which is used in many products, including buildings, automobiles, and appliances. Hematite is also used as a weighting agent in drilling fluids, which is used in the oil and gas industry.

Hematite is a rock-forming mineral and is found in many different types of rocks. It is often associated with other minerals, such as quartz, calcite, and pyrite. Hematite is a relatively hard mineral and has a Mohs hardness of 5.5-6.5.