Copper Essay -- essays research papers

Copper Copper is a mineral. it is not a plant or a animal. Copperis a metallic metal. It can never be broken down into differnet substances bynormal chemical means. Copper was one of the first metals known to humans.People like it because in its native condition, it could easily be beateninto weapons or tools. Copper has been one of the most useful metals for over5000 years. Copper was probably employ around 8000 B.C by people living along theTigris and Euphrates rivers. In 6000 B.C, Egyptians learned how to hammer tomentuminto things they wanted. Around 3500 B.C, People first learned how to meltcopper with tin to make bronze. So the period between 3000 B.C and 1100 B.Cbecame known as the bronze age.Today, some of the leading states of the copper industryare Arizona with 747,000 all of a sudden tons, Utah with 187,000 little tons, New Mexicowith 161,000 short tons. Some other leading countries are Chile with 1,422,000short tons, United States with 1,203,000 short tons, Soviet U nion with 650,000short tons, and Zambia with 596,000 short tons.When copper is being mined, both Native copper and copper oreare usually found. The highest grade of copper ore is pale silvery gray. Minersused to be always in danger in copper mines. Today, we have redu...