See explanation below.
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Ore is a naturally occurring solid material from which a metal or valuable mineral can be profitably extracted. 2 Mineral is a naturally occurring, homogeneous inorganic solid substance having a definite chemical composition and characteristic crystalline structure, color, and hardness 3 The impurities present in the ore such as sand, rocks etc are known as gangue. 4 Brine is water saturated with or containing large amounts of a salt, especially sodium chloride.