KGMK+4.3

toc =4.3 Minerals Resources=

Vocabulary

 * gemstone**:a mineral that has a shiny luster
 * smelting**:when you melt an ore
 * ore:**a rock that has metal in it
 * alloy**:it should have two or more metals in it

The Uses of Minerals

 * the people that live today still use minerals.
 * we are always surrounded by materials that have come from minerals.
 * such as metal body of a car and the glass of the car.
 * minerals are the source of many things such as metals, gemstones, and may other materials used to make products.
 * minerals are very important in our everyday life.

Gemstones

 * gemstones are usually always beautiful.
 * they have been used for people through out the ages.
 * once a gemstone has been cut and polished it is then called a gem.
 * gems mainly used for decoration and jewelry and many other stuff.
 * can also be used for grinding and polishing (polishing other gemstones) and even for mechanical parts.



Metals

 * some minerals are the source for metals like aluminum, iron, copper, or silver.
 * metals are very useful for they can be stretched into wire, flattened into sheets, or even hammered or molded and it won't be able to break.
 * metals are in many things like metal filaments in light bulbs.
 * this all began as minerals that were inside Earth's crust.

Other Useful Minerals

 * there are also many other useful minerals than metals and gems.
 * people may use these materials from these minerals in foods, medicines, fertilizers, and even building materials
 * the very soft mineral talc is ground up to make talcum powder
 * Fluorite is very important in making aluminum and steel
 * the clear type of crystals are used in optical instruments such as microscope
 * Quartz us a type of mineral found in sand, its used in making glass and even electronic equipment and also watches

Ores

 * a ore that has useful minerals in it.
 * most metals don't form in pure form
 * . before metals, gemstones, and other type of minerals can be aloud to separate from their ores, geologists must find them
 * prospectors are the people who search or prospects an ore deposit