CMDV+4.3

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=4.3 Mineral Resources=

Vocabulary

 * Gemstone:** Colorful and hard mineral with a very nice shiny luster.
 * Ore:** An economically useful or a rock that contains a metal.
 * Prospector:** Anyone who searches for ores.
 * Strip Mines:** Earthmoving equipment scrapes away the soil to show the ore.
 * Open Pit Mines:** Miners dig a tremendous pit with giant earthmoving equipment.
 * Shaft Mines:** Miners dig shaft mines for the ore that occurs in veins.
 * Smelting:** An ore gets melted to separate the useful metal from other elements it contains.
 * Alloy:** A solid mixture of two or more elements.

The Uses of Minerals

 * Minerals are the source of metals, gemstones, and other materials used to make many products.
 * Gemstones
 * Metals
 * Other Useful Minerals

Mining

 * There are three types of mines: strip mines, shaft mines, and open pit mines
 * Strip Mines
 * Shaft Mines
 * Open Pit Mines

Smelting

 * After miners remove ore from a mine, smelting is necessary to remove the metal from the ore.
 * Smelting
 * Alloy
 * Smelting Iron Ore