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Minerals

collection of rough minerals

 

 

A mineral is a naturally occurring solid that has evolved through a geological process. It must have a specific chemical composition and a distinctive internal crystal structure. All of the rocks that make up our planet are minerals.

In order for a substance to be correctly classified as a mineral it must have formed naturally without any human intervention, it should not droop, melt or evaporate and should be inorganic meaning it's not a carbon compound (a chemical substance which contains carbon) like all living things on Earth.

For a mineral to be crystalline the atoms must be arranged in a regular, geometric, three-dimensional pattern which forms a solid body known as a crystal.  

Although there are more than 4000 minerals which have been identified only about 100 are common.