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A mineral is a naturally occurring substance, representable by a chemical formula, that is usually solid and inorganic, and has a crystal structure. It is different from a rock, which can be an aggregate of minerals or non-minerals and does not have a specific chemical composition.
A mineral is an element or compound that is inorganic, has a definite chemical formula, is solid, is naturally occurring, and has a crystalline structure. A rock is normally d â¦ escribed as a combination of minerals.