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Platinum is a chemical
element with a hardness of 4 - 4.5 and a boiling point
of 1769ºC while those of gold are 2.5 and 1064ºC,
respectively. Platinum possesses stable chemical
properties and is known as the most tarnish-resistant of
all precious metals. Earth deposits of platinum is much
less than that of gold. Total deposits approximate
14,000 tons, only 5% of the supply of gold. Globally
South Africa and Russia are the two main sources of
platinum deposits. Annual platinum production is about
90 tons. Platinum possesses strong antioxidation
properties and its application ranges widely in fields
such as marine and military manufacturing,
communication, chemical and auto industries.
From the 1970s, the use of platinum in fine jewelry
became popular around the world, particularly in regions
such as Europe, United States and Japan. Through to the
end of the 20th century, such popularity of platinum
jewelry was greatly enjoyed around the globe. Platinum
is also used to make contemporary coins. This began in
1977 when the Soviet Union made platinum coins for the
1980 Moscow Olympics, each set containing 5 coins.
In platinumcoins.info,
we provide basic information of world modern platinum
coins. If you have any questions regarding
platinum coins, feel free to
email
us. |
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