SOME INTERESTING FACTS ABOUT GOLD
Gold is one of the world's most precious and rarest metals. One of the interesting facts about gold is that it is so soft
and workable that one ounce
can be stretched into a wire five miles long, or hammered into a sheet so thin that it could cover a hundred square feet.
Since in its pure form it does not rust or corrode, it can last forever. Interestingly, it is present almost everywhere around us - in the
earth's crust, seas, rivers and in plants, but it is very difficult and expensive to extract. Approximately two and
a half to three tons of ore are needed to extract one ounce of gold.
Gold readily creates alloys with many other metals. These alloys can be produced to modify the hardness and other metallurgical properties,
to control melting point or to create exotic colors.
It is also a good conductor of heat and electricity and reflects infrared radiation strongly. Chemically, it is unaffected by air, moisture and
most corrosive reagents, and is therefore well suited for use in coins and jewelry and as a protective coating on other, more reactive,
metals.
Its most important industrial use is in the manufacture of electronics.
Apart from that it is also used
in computers, dentistry, medicine, aerospace , glassmaking and ofcourse jewellery where it comes in various colors.
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