1. The alloy with the highest purity of platinum contains 95% pure platinum, and 18K gold is 75% gold. The purity of a platinum jewelry is higher than that of gold jewelry. The rarest thing is that the world produces 140 tons of platinum every year, while the annual output of gold is 3300 tons.
Only skilled craftsmen can make it. The melting point of platinum is higher than that of gold, so the technical requirements for workers are more skilled.
4. The most stable platinum is the metal with the strongest acid resistance, alkali resistance and high temperature resistance, and will not fade or change color. Platinum rings generally do not deform. 5. Platinum with good gloss and ductility has natural white and luster, which will not affect the color of gemstones and make them glow "fire". Good ductility also makes them suitable for processing.
6. Do not cause allergic reaction to the wearer.
7. Valuable and excellent.
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Seven characteristics of platinum
Platinum has always been regarded as a precious metal because of its unique characteristics. In recent years, the International Platinum Association has strongly advocated it, making it more and more important in the wedding ring.
Platinum was widely used in ancient Egypt 3000 years ago. Archaeologists once found that the coffin of an Egyptian priestess was decorated with hieroglyphics made of platinum, which remained perfect for a long time without losing its original luster, fully proving the durability and stability of platinum. Platinum didn't start to glow until the first diamond was dug up in Kimberly Mine in South Africa. This year, the Italian Platinum Association launched a series of new wedding rings, and put forward seven characteristics of platinum, indicating that platinum is the best choice to become a precious metal.
1. Maximum purity.
Platinum alloy contains 95% pure platinum, and 18K gold contains 75% gold. The purity of a platinum jewelry is higher than that of gold jewelry.
2. The rarest
The world produces platinum 140 tons every year, while the annual output of gold is 3300 tons.
Only skilled craftsmen can make it. The melting point of platinum is higher than that of gold, so the technical requirements for workers are more skilled.
Step 4 be the most stable
Platinum is the metal with the strongest acid resistance, alkali resistance and high temperature resistance, and will not fade or change color. Platinum rings generally do not deform.
5. Good gloss and ductility
Platinum has a natural white color, which will not affect the color of gemstones, but also make gemstones glow "fire". Its good ductility also makes it suitable for processing.
6. Do not cause allergic reaction to the wearer.
7. Valuable and outstanding
The difference between platinum and k gold
Platinum is called platinum in chemistry, and its seal code is "PT", which is also the chemical symbol of platinum and the abbreviation of "platinum" in English. Its elegant and simple colors are innate. The content of platinum ornaments is calculated as one thousandth, PT 1000 is pure platinum, and PT850 or PT900 is 850 thousandths and 900 thousandths of platinum content.
Platinum is an alloy of gold and palladium. Palladium is white, so it will appear white when it is combined with gold. Its seal code "WG" is the abbreviation of English "WHITE GOLD", which means "Platinum". Platinum and K gold have the same volume, but the weight of platinum is higher than K gold.
1. Is platinum really the rarest precious metal?
Yes, the world can only mine 150 tons of platinum every year, of which 60 tons are used for jewelry. The total output of gold reaches 3300 tons every year. It has been estimated that if all the platinum mined before is put together, its volume is only equivalent to a cube 5 meters square, and the platinum reserves are not large. Usually the demand exceeds the supply.
2. Is it really difficult to obtain platinum from its raw materials?
Yes, it takes 5-6 months to process 65,438+00 tons of ore to obtain an ounce of platinum, that is, 365,438+0.65,438+0g, before it can be cast into an "ounce platinum ingot" from raw materials. The same amount of gold can be extracted from 3 tons of ore in only 3-5 weeks.
3. Can white gold mines really be found all over the world?
That's not true. In fact, only a few areas on the earth produce platinum. South Africa accounts for 68%, Russia accounts for 25%, North America accounts for 5%, and the remaining 2% comes from other countries, mainly Zimbabwe.
4. Does platinum really have special physical properties?
It's true. First of all, the specific gravity of platinum is 2 1.45g/cm3 (much larger than that of gold and silver, which are 19.3g/cm3 and 10.5g/cm3 respectively), and its melting point is relatively high, reaching 1773℃, and the melting points of gold and silver are 65438 respectively. Secondly, it has excellent acid and alkali resistance (it can be dissolved by aqua regia at 70℃, but other acid and alkali solutions can't be dissolved. ) and high temperature resistance (heating cannot deform it). It is precisely because of these characteristics that 1795 used platinum in the metric system based on decimal system. These two samples can still be found in the Breteuil Collection near Sevres. Although platinum has these unchangeable characteristics, the ductility of this metal is incredible, that is, a thin wire drawn with 1g platinum can extend for up to 2 kilometers.
5. Is platinum a pollutant and can it cause allergies?
This is not true. In fact, on the contrary, platinum is completely anti-allergic, and it is a powerful ally for people to fight against environmental pollution and harmful diseases. The catalytic properties of platinum can be used to reduce air pollution caused by motor vehicle exhaust. In fact, the filter in car muffler contains platinum. In addition, platinum alloys are also used to make pacemakers and treat some mysterious types of cancers, such as ovarian and testicular tumors.
6. Does platinum really have many important industrial uses?
Yes, statistics show that one of the five commonly used products contains or is made of platinum. In addition to medicine and environmental pollution control, this metal is also used in electronics and clean energy, petrochemical industry, glass and aviation, not to mention aerospace and other fields. The lenses and optical fibers mainly made of platinum are of good quality, so platinum is also used in TV equipment, computer monitoring screens, liquid crystal displays and other products that cannot be listed, including fertilizer.
7. Can platinum really be called a real and unique metal family?
It's true. There are five other elements called platinum group metals: iridium, osmium, palladium, rhodium and ruthenium. In many countries, such as Italy, palladium is regarded as a precious metal comparable to platinum, gold or silver.
8. Are European countries really the biggest consumers of platinum?
This is not true. Japan is the largest consumer of platinum, accounting for 4 1.5% of the global demand, followed by 23% in North America, and 17% in Europe, which is at the average level, and 14.5% in the rest of the western world. Finally, China's annual consumption in the market accounts for 4%.
9. Is the name Platinum really caused by the mistake of the conqueror (Spain)?
Yes, platinum was discovered by accident in the New World, between the end of 16 and the beginning of 17. The Spanish mistook it for inferior silver and called it "platinum" in a derogatory sense, but in the same area, as early as BC 100, Indians liked to show off their jewelry made of gold and platinum. The earliest platinum jewelry we obtained was a small jewelry box belonging to the ancient Egyptian priestess shepenupet.
10. Is it really particularly safe to set gems in platinum?
Yes, because of its strength, platinum can provide an eternal "grip". The most famous diamonds in the past, from the famous "Indian Diamond" collected by the King of England to the "Star of Africa", are all set in platinum. Some insurance companies will reduce the insurance premium for platinum jewelry.
Walk into platinum fashion
Platinum (abbreviated as Pt) shone brilliantly in the history of human civilization as early as 700 BC. At that time, the ancient Egyptians decorated their boxes with beautiful hieroglyphics in platinum. By 100 BC, South American Indians had successfully mastered the processing technology of platinum and made platinum jewelry with different styles. /kloc-In the 8th century, King Louis XVI of France especially favored platinum, calling it "the only precious metal worthy of the title of king". In modern times, the world-famous jewelry design Cartierfabergetiffany has created an immortal masterpiece with platinum. The world-famous Hope diamond is always set in a platinum chain.
At the beginning of this century, platinum has become the most popular precious metal in the United States. Its natural white luster has conquered the hearts of countless aristocratic families. After the outbreak of World War II, platinum has a very important military use. The U.S. government once banned the non-military use of platinum, and replaced platinum with white gold (alloy of gold and other white metals), although white gold can never replace platinum in many aspects such as luster and hardness.
Today, the application of platinum in jewelry continues. Its three characteristics of rarity, purity and hardness and its natural white luster still fascinate men and women who pursue fashion.
Platinum is rare because the treatment of platinum is much lower than that of gold. So far, the global platinum reserves add up to only enough to fill a medium-sized room. It takes five months to extract one ounce of platinum from 10 ton platinum ore.
Platinum is pure because platinum jewelry usually contains 90% pure platinum and other 10% crazy metals. In contrast, 18K white gold only contains 75% pure gold, and the white luster of platinum is natural and will not fade after long-term wear.
It is said that platinum is hard because of its high density and almost twice the strength of gold, and it is the best choice for inlaying all kinds of precision. Because of its good performance, one gram of platinum can pull out 2 kilometers long filaments. The hardness of platinum makes it hard to wear, and the platinum marriage lasts as long as new.
The intrinsic value of platinum and its elegant luster have inspired countless jewelry designers, and the jewelry industry or fashion industry is keen to set off a "white wave" again. Cartier, a French designer, called platinum jewelry "the king of precious metals": GiorgioArmani used platinum wire in his evening dress; CalvinKlein also weaves his evening dress with platinum wire.
The design of platinum jewelry is also constantly innovating, among which Japan, as the largest market of platinum jewelry, is particularly representative. Japanese platinum jewelry works fine, from casting to polishing, without exception. The design style is both fashionable and subtle. Every ornament is like a work of art.
As the second largest platinum jewelry market in the world, China needs to be further improved in design concept and processing technology to meet consumers' demand for personalized and fashionable jewelry. Therefore, the International Platinum Association will hold the first expert lecture on jewelry designers in Shanghai in early July, and invite Mr. Sekikazu, one of the top ten famous Japanese jewelry designers, to teach design concepts and skills to platinum jewelry designers in China.
Generally speaking, simple lines, exquisite ideas and fine processing are the fashion of platinum jewelry design at present. So Thai platinum design is talked about by designers, because many modern works can be made by borrowing the silvery white and lines of the metal itself.
The passage of time did not take away people's love for platinum, but increased its beauty. The charm of platinum lies in its peaceful aftertaste from the inside out. Its value, firmness, truthfulness, purity and elegance all make people feel that platinum is worth owning.