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Mineral - Wikipedia, the free encyclopedia
A mineral is a naturally occurring substance formed through geological processes that has a characteristic chemical composition, a highly ordered atomic structure and specific ...
Dietary mineral - Wikipedia, the free encyclopedia
Dietary minerals are the chemical elements required by living organisms, other than the four elements carbon, hydrogen, nitrogen, and oxygen which are present in common organic ...
The mineral and gemstone kingdom: minerals a-z
An interactive, educational guide to rocks, minerals, and gemstones.
The mineral and gemstone kingdom: home
An interactive reference guide to rocks, minerals, and gemstones.
minerals - Definitions from Dictionary.com
noun . 1. any of a class of substances occurring in nature, usually comprising inorganic substances, as quartz or feldspar, of definite chemical composition and usually of ...
Amethyst Galleries - Minerals by Name
Comprehensive information about the many types of minerals in the world.
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