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The Gold Life Cycle

THE GOLD LIFE CYCLE With ecology in the forefront of business these days, it's important to reduce the effect that jewellery manufacture and sales has on the environment. And this makes not only sound environmental sense, but also good economic sense as well. Gold may be found in many places. Once Gold is discovered in an area, the mining begins and ore containing gold is mined from the earth. MINING There are several techniques: • Small scale mining when gold is found as particles in loose sediment. Mostly artisan operations: • Panning: The oldest method of mining gold: cheap, simple and easy process involved. • Separate heavy gold from lighter material with sluice boxes (using water) or drywashers (using air). • Large scale or hard rock mining produces most of the world's gold and is done when the gold is encased in rock: • open-pit mining is used if the rocks or minerals are close to the surface of the land. underground mining, where the ore is extracted through tunnels or shafts. PROCESSING The steps of the process are: Ore Crushing and grinding the gold ore into finer particles Crushing Leaching Adsorption Leaching: usually a cyanide solution attacks and dissolves Decatation gold, that is liberated from the worthless gangue rock Elution which surrounds it. A modern Precipitation cyanide mill recovers or extracts 95% to 98% of the gold in the ore. Electrowinning Filtering Cake Smelting Bullion By smelting and refining, the gold is Refining turned into gold bars. Au Pure SOLD SELLING THE GOLD BARS Gold bars can be commercialized for two reasons: - Gold bars are sold to be used in jewellery (or other industrial uses, as - Gold bars are sent to the Assay Office for certificates so they can be sold for electronic contactors). investment reasons. CERTIFIED CONSUMING Gold is then bought by consumers and used as jewellery. TRADING Gold sent in using gold trading packs that are ordered from the website. 3. PAYING Money is sent back to who sent in their unwanted gold. e person RECYCLING THE GOLD Gold is then re-sent to a bullion house and melted back into gold bars.

The Gold Life Cycle

shared by Angel on Jan 24
With the environment in the forefront of businesses, jewelry manufacturers must reduce environmental effects. This infographic shows the life cycle of gold and ways to reduce environmental impact.


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