Ore is the name given to metallic minerals that may be extracted profitably.
In terms of geology and mineralogy, a mineral or mineral species is, generally speaking, a pure, naturally occurring solid chemical compound having a very well-defined chemical makeup. Compounds found solely in living creatures are often not considered as minerals according to geological definitions.
However, some minerals, like calcite, are frequently biogenic or, in terms of chemistry, are organic molecules (such as mellite). Additionally, living things frequently produce inorganic minerals (like hydroxylapatite), which are also found in rocks. Rock, which is defined as any bulk solid geologic substance that is sufficiently massive and sufficiently homogenous, is classified not as a mineral.
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