sphalerite

Sphalerite is a mineral composed mainly of zinc sulfide, which appears in various colors like yellow, brown, or black. It is a common source of zinc, a metal used in making steel, batteries, and other products. Sphalerite forms in underground deposits through geological processes and often occurs with other minerals. Its crystalline structure can be transparent or opaque, and it has a characteristic resinous to metallic luster. Because of its widespread occurrence and importance in metal extraction, sphalerite is a significant mineral in the mining industry.