Minerals.docx - Minerals Every American born will need 2.92...

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Minerals - Every American born will need 2.92 million lbs. of minerals, metals and fuels in their lifetime - Minerals: o Naturally occurring o Solid o Inorganic (not alive) o Pure chemical composition o Crystalline internal structure (3-D repeating pattern) - Rocks are made of minerals - Atoms: Mineral building blocks o Nucleus composed of protons and neutrons, electrons on outside - Bonds: o Ionic – formed between ions of opposite charges (weak) Electrons move from one atom to another Halite (NaCl) – An example of ionic bonding o Covalent – atoms share electrons (strong) Diamond (C) – An example of covalent bonding o Metallic – electrons jump freely from atom to atom (Malleable – heating and bending) Electron sea model Nuclei in a sea of electrons Metallic luster Pyrite (fool’s gold) – example of metallic o
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