aktarlite
Aktarlite is a mineral composed primarily of iron and sulfur, with the chemical formula Fe2S3. It belongs to the sulfide mineral group and is characterized by its dark metallic luster and typically black or dark gray color. The crystal structure of aktarlite is complex, often appearing in granular or massive forms rather than well-defined crystals. It is a relatively rare mineral, typically found in specific geological environments.
Aktarlite forms under conditions of high temperature and pressure, often associated with hydrothermal veins or metamorphic