'''mineral''' is a chemical a .  .
|−|In geology, a '''mineral''' is a chemical or a mixture of chemicals which forms crystals. A [ [rock] ] is composed of one or more minerals, the crystal sizes of which depend on the circumstances in which they formed. | |
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Revision as of 15:02, 7 December 2019
A mineral is a solid, naturally formed substance with a definite chemical composition and characteristic crystalline structure. Most minerals are inorganic, but there are a few exceptions.
- ↑ Nelson, Stephen. “Minerals.” Tulane University. 31 August 2015.