Sulphide minerals are a group of minerals that contain sulfur combined with one or more metals. They are important sources of various metals, including copper, lead, zinc, and nickel. These minerals typically form in igneous and metamorphic rocks and can also be found in hydrothermal deposits. Common examples of sulphide minerals include chalcopyrite, galena, and sphalerite. They often exhibit metallic luster and are usually opaque. Sulphide minerals play a significant role in mining and metallurgy, as they are processed to extract valuable metals for various industrial applications.