MINERAL AND ENERGY RESOURCES IN INDIA
MINERALS
Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Copper
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Bauxite
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Mica
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Manganese
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Detailed explanation-1: -Copper is used as a base metal to mix with gold and to make it stronger, harder and less brittle in nature. It acts as the best alloy to make ornaments.
Detailed explanation-2: -Rose gold is an alloy made from a combination of pure gold and copper. The blend of the two metals changes the color of the final product and its karat. KDM gold is a type of gold alloy where 92 percent gold and 8 percent cadmium alloy are mixed. this is where the term KDM gold came from.
Detailed explanation-3: -Commonly copper and silver are used to mix with gold while making jewellery.
Detailed explanation-4: -When copper (which is reddish in color) is combined with gold, the end result is rose gold, and the depth of the color will depend on how much copper has been added to the gold. Typically, the greater the content of copper, the more red the hue of the final alloy. How pure gold is measured, is in karats.
Detailed explanation-5: -Metals commonly alloyed with gold for jewelry purposes include: silver, copper, nickel, iron, zinc, tin, manganese, cadmium, and titanium. In addition to enhancing gold’s strength, alloying changes some of its other properties, too. For example, some gold alloys stain skin or cause allergic reactions.