it is Melted and cooled then melted again
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Gold is typically extracted from gold ore using a combination of chemical processes. The most common method involves cyanidation, where cyanide solution is used to dissolve the gold from the ore. The dissolved gold is then extracted from the solution through adsorption onto activated carbon, followed by refining to obtain pure gold.
The chemical formula for gold ore can vary depending on the type of ore. However, a common formula for gold ore is Au2S (gold sulfide).
The main ore of gold is known as gold ore or gold-bearing ore. It typically contains higher concentrations of gold compared to other minerals, making it economically viable for gold extraction.
The purity of gold ore is typically measured in karats, with 24 karats being pure gold. Assuming the gold ore is 24 karats, you will obtain approximately 0.9999 grams of pure gold from 1 gram of gold ore.
Gold ore contains gold metal, which is highly visible due to its distinctive yellow color. Iron ore, on the other hand, contains iron in the form of iron compounds such as hematite and magnetite, which do not exhibit the same visible metal characteristics as gold. The presence of visible gold in gold ore is due to its high density and purity compared to iron compounds found in iron ore.
Borax is used in the process of extracting gold from ore as a flux to help separate gold from other minerals. It helps to lower the melting point of the gold, allowing it to be easily separated from the ore.