Sphalerite is a mineral primarily composed of zinc sulfide, often found in sedimentary rocks. It typically appears in various colors, including yellow, brown, and black, and is known for its glassy luster. Sphalerite is an important ore of zinc, which is essential for many industrial applications, including the production of batteries and galvanization of steel. This mineral can also contain traces of other elements like iron, which can affect its color and properties. Sphalerite is often associated with other minerals such as galena and pyrite, making it a significant part of mining operations in regions rich in zinc deposits.