Mineral ore refers to a naturally occurring concentration of minerals, metals, or other valuable substances that can be extracted using complex refinement processes. Ores are typically found in rocks and are formed through geological processes over long periods of time. These processes involve the accumulation and concentration of specific minerals or elements to levels that make their extraction and processing worthwhile. Some of the most economically important ores are hematite, magnetite, siderite (iron ore), chalcopyrite, bornite, chalcocite (copper ore), electrum (gold-silver ore), bauxite (aluminium ore), uraninite (uranium ore), etc.
