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JEWELRY - Platinum Jewelry |
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Platinum
has wear and tarnish resistance characteristics and
well suited for making fine jewelry. Platinum is more
precious than gold.
Platinum is a pure metal, silvery-white in colour and
it is lustrous, ductile, and malleable. It does not
oxidize at any temperature, but it gets corroded by
halogens, cyanides, sulphur and caustic alkalis. Platinum
is insoluble in hydrochloric and nitric acid, but dissolves
in aqua regia (a mixture of hydrochloric acid and nitric
acid.) to form Chloroplatinic Acid.
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usually is mixed with other similar metals, known
as the platinum group metals: iridium, palladium,
ruthenium, rhodium and osmium. Different markings
are used on platinum jewelry as compared with
gold jewelry, based on the amount of pure platinum
in the piece. Jewelry that contains at least 950
parts per thousand of pure platinum is marked
or described as "Platinum" (95% platinum
and 5% other metals.)
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| Platinum's
real, white luster match perfectly and complements
diamonds and other precious gems. Its neutral
colour enhances a stone's brilliance and depth.
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The matchless combination
glittering stones fused with the timeless elegance
of platinum create a rare and enduring symbol
of lifelong love.
Platinum is also used for industrial purposes
as it possesses high resistance to chemical attack,
excellent high-temperature characteristics, and
stable electrical properties. |
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