Minerals are chemical compounds of a specific chemical formula that is both inorganic and solid in nature. It is a naturally occurring substance. It's inorganic and has a well-organized internal structure. The study of minerals is known as mineralogy. Man-made minerals contain gemstones such as diamonds, emeralds, and sapphires that are similar to natural gemstones. Copper is a mineral that is used in electrical devices because it is a strong electrical conductor. Clay is used to render cement and other materials that aid in the construction of roads. Borax is used to produce fiberglass and cleaning agents.