29 November 2010 archive

Precious metal used to make jewelry

“Jewelry to people’s thought from your wrinkles.

Sonja Henie, Olympic Games, figure skating and Hollywood actor.

Jewelry than disperse is not perfect, it can actually increase perfect, if such things are possible. Originating from the Latin word “jocale” meaning of animal toys, jewelry dates back to the earliest the dawn of human existence, and early specimen found that more than 10 million years old. While early cases of people (and women) jewels from the bead, shells, Angle and bones, modern jewelry largely by precious metals and precious stones. Although almost all of the alloy metal found on earth is used in jewelry, the most popular three precious metals in today’s gold, silver and platinum.

Chemists will describe gold as metal gold (from the comprehensive, the symbol of Latin for “light of dawn”) and atomic number 79. Physicists will increase is the most malleable and ductile metal and statisticians will estimate all the gold, once mined will form a cube of 60 meters edge. But they will not be able to convey, in age, material can incite as much enthusiasm and wonderful yellow metal.

Gold has been used, and reverence, because 5000 BC. The earliest civilization value measurements of gold. Gold drive to exotic adventurer, from Spanish conquistadors land in the 15th century 400 years later San Francisco 49ers. Until today, it is the most popular material expensive jewels. Because of pure gold, texture is soft, not suitable for jewelry, mix with other metals, usually copper. The final alloy’s purity is classification in karats (k), equivalent to purity 24th in mass 1 /. Therefore 24k gold is 22k 99.9 pure, gold, 91.6% 18k gold is 75% pure, etc. American gold jewellery, calculating is such, must be at least 10,000 or 41.7% of pure gold.

Silver may not like gold’s popularity, but it has been a part of human history, as a medium of currency and ornament. The book of genesis referred to the bible was pointed out the use of silver as early as 4000 BC. Also in the bible, judas iscariot, deceived everyone betray Jesus Christ to the Romans thirty dollars. In jewelry, silver saw a remarkable recovery in recent talks in popularity. Silver jewelry from sterling silver, the traditional silver copper alloy joys 7.5%.

Platinum is metal than gold, are extremely rare. Don’t like gold, silver, there is little evidence that used early. But often shows that more than yellow metal, platinum price lower than gold is during periods of economic uncertainty, because platinum prices are usually be industry demand. Historically, platinum has been shown more than gold, with king Louis xv of France had announced the only metal fit for a king. Platinum rare, a well-known above unanimously, this gold platinum card and multi-platinum albums.

The name comes from the Spanish term platinum platinum del pinto, literally translates as “little silver larry river.” Most of the platinum mined for catalytic converters, although its jewels show in the most popular increase. Metallic ability to withstand wear, makes it attractive, exquisite jewellery platinum products was as “forever”. Diamond white show particularly popular commitment and love.