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=Vocabulary=


 * gemstone**- any hard, colorful mineral that has a brilliant or glassy luster


 * ore**- a rock that contains an economically useful mineral


 * strip mines**- mining in which earthmoving equipment scrapes away soil to expose ore


 * open pit mining**- mining in which giant earthmoving equipment dig a tremendous pit


 * shaft mines**- mining that has a network of tunnels that extend deep underground


 * alloy**- a solid mixture of two or more impurities from iron

=Outline=

T= **Mineral Resources**
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 * **Minerals are the source of metals, gemstones, and other minerals used to make many products.**
 * ===Gemstones===
 * any mineral w/ glassy luster
 * colorful
 * rubies
 * sapphires
 * valued for durability+ rare
 * ===Metals===
 * some minerals= source of metals
 * metals= useful, molded without breaking
 * metals= used for
 * steel girders
 * metal filament
 * tools+ machinery
 * ===Other Useful Minerals===
 * talc= used for talcum powder
 * fluorite= used for aluminum+ steel
 * calcite= used for microscopes
 * quartz= used for watches
 * kaolin= china and pottery
 * gypsum= wallboard, cement, stucco
 * corundum= used to polish+ clean
 * ===Ore===
 * ore= rock contains economically useful mineral
 * most metals don't occur pure form
 * metal usually occurs as mineral
 * ===Prospecting===
 * prospector= anyone who searches for ore
 * ===Mining===
 * three types of mining=
 * strip mine
 * earthmoving equipment scrapes away soil
 * open pit mine
 * used remove ore that start near surface
 * earthmoving equipment digs tremendous hole
 * shaft mines
 * have network of tunnels
 * used for ore deposits in veins
 * mining= harmful to environment
 * strip+ open pit mining= scars Earth
 * waste materials from mining= pollute rivers
 * ===Smelting===
 * **After miners remove ore from a** **mine, smelting is necessary to remove the metal from the ore**
 * smelting= melting ore to separate metal
 * smelting steps
 * 1. Ore crushed, mixed w/ coke
 * 2. Mixture put in blast furnace
 * 3. Coke burns= change chemical
 * 4. melted iron sinks to bottom
 * 5. Impurities in ore+ limestone= slag
 * 6. Slag+ molten iron poured