Mineral
From Simple English Wikipedia, the free encyclopedia
Minerals are substances that are formed naturally in the Earth. To be mineral it must be solid, inorganic, chemical composition, crystal structure,and naturally occuring. The study of minerals is called mineralogy.
A mineral is a solid and has a crystal structure. It also has a defined chemical composition.
A mineral can be a solid chemical element, or in most cases a solid compound. Two common minerals are quartz and feldspar.
There are over 4,000 known minerals.
Some uses of minerals:
[edit] Minerals and rocks
Minerals are different from rocks. A mineral is a chemical compound with a given composition and a defined crystal structure. A rock is a mixture of one or several minerals, in varying proportions.
