Gold Characteristics

Even though gold is more commonly known of and seen in a yellow color it can in addition occur in a ruby or black color when it has been finely separated. The colloidal solutions are very colored and in many cases even have a purple color. The plasmon frequency of gold (which is the quasiparticle that comes from the quantization of plasma oscillations, which are density waves of the charge carriers in a conducting medium such as gold) that can be seen, ends up being in colors. It takes in blue light and causes the yellow and red light to be reflected on it. Gold is known to be ductile and malleable and so much so that one gram can be pounded into a sheet of one square meter. It forms alloy with a great number of other metals quite readily and with copper it results in a metal that is a bit redder, blue in the case of iron, silver brings about green, aluminum brings about a purplish color and platinum causes it to have a whitish color. Native gold is also known to have around eight to ten percent to silver in it as well. Gold is in addition a conductor of heat and electricity and is it does not become affected by air and most reagents. Heat, moisture, oxygen and almost all of the corrosive agents do not have a great affect on gold; nonetheless chemical halogens can have an effect on gold such as chlorine, aqua regia and fluorine.

Gold uses  
Gold and gold alloy are usually utilized in jewelry, coinage and are a monetary exchange in diverse countries and green gold is utilized in specialized jewelry. Given that it has a high electrical conductivity and is resistant to corrosion, it can be utilized as an industrial metal. Gold is also made in to a thread and utilized in embroidery. It also carries out very important functions in communications equipment such as computers, spacecrafts, aircraft engines and a number of other products. Given that it is resistant to oxidation it can also be utilized in thin layers that are electro plated on the surface of electrical connectors to reassure accurate connection. Gold is being increasingly used in restorative dentistry as well. Colloidal gold is a highly colored solution which is utilized as gold paint on ceramics before they are fired. Gold chloride is utilized as a catalyst in organic chemistry; it is also utilized for protective coatings on a lot of artificial satellites since it serves as a good reflector of infrared and visible light. Gold is also utilized in the medical field for some treatments of cancer and other serious medical conditions. White gold can be used as a substitute for platinum and gold flakes are also used in some drinks.

Gold markets in the world and greatest gold producing countries
The most important gold markets in the world include New York, which is the home of futures trading, London which is the grand clearing house, Zurich as a physical movement, Istanbul, Singapore, Hong Kong, Dubai given that they are noteworthy consuming areas, as well as Tokyo and Mumbai. The most noteworthy gold producing countries include, South Africa, Canada, United States, Russia, Indonesia, Australia, China, Peru, Indonesia, Uzbekistan, Ghana, Papua New Guinea, Brazil, Philippines, Chile, Mexico, Mali, Argentina, Kyrgyzstan, Colombia and Zimbabwe.