A mineral is a solid chemical compound that occurs in pure form. A mineral is generally crystalline and has been formed as a result of geological processes. Minerals are naturally-occurring homogeneous substances that are inorganically formed, thus having a definite chemical composition, an ordered atomic arrangement, and molecular structure and predictable physical properties. It is due to these definite properties that differentiate each mineral from the other. Minerals occur in solid forms and not in liquids or gases. We use minerals every day, as the salt in our food. Some examples of minerals include quartz, calcite, feldspar, sulfur.
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