Lepidolite is a lithium-bearing mica mineral known for its lavender, pink, or violet hues due to the presence of lithium and manganese. It has a sheet-like structure and is commonly found in pegmatites alongside minerals like tourmaline and quartz. With a Mohs hardness of 2.5 to 3, it is relatively soft, making it ideal for decorative pieces, carvings, and ornamental jewelry. Major sources include Brazil, Madagascar, and the United States. Lepidolite is also an important source of lithium, used in battery production.