Smithsonite is a mineral composed primarily of zinc carbonate (ZnCO₃). It typically forms in a variety of colors, including green, blue, yellow, and pink, and often exhibits a glassy or pearly luster. Smithsonite is commonly found in the oxidation zones of zinc ore deposits and can occur in botryoidal (grape-like) or massive forms. This mineral was named after the British mineralogist James Smithson, who is also known for founding the Smithsonian Institution. Smithsonite is often used as a source of zinc and is sometimes collected by mineral enthusiasts for its unique colors and formations.