Electrum is a naturally occurring alloy of gold and silverwith trace amounts of copper and other metals. It has also been produced artificially, and is often known as green gold. The ancient Greeks called it 'gold' or 'white gold', as opposed to 'refined gold'. Its colour ranges from pale to bright yellow, depending on the proportions of gold and silver.
This suggests that one reason for the invention of coinage in that area was to increase the profits from seigniorage by issuing currency with a lower gold content than the commonly circulating metal. Electrum was used as buy electrum jewelry as the third millennium BCE in Old Kingdom of Egyptsometimes as an exterior coating to the pyramidions atop ancient Egyptian pyramids and obelisks. It was buy electrum jewelry used in the making of ancient drinking vessels. The first metal coins ever made were of electrum and date back to the end of the 7th century or the beginning of the 6th century BCE.
For several decades, the medals awarded with the Nobel Prize have been made of gold-plated green gold. The name electrum was also used to denote German 'silver'mainly for its use buy electrum jewelry making technical instruments. The same word was also used for the substance amberlikely because of the pale yellow colour of certain varieties. It is from amber's electrostatic properties that the modern English words "electron" and "electricity" are derived.
Electrum was often referred to as " white gold " in ancient times, but could be more accurately described as "pale gold", as it is usually pale yellow or yellowish-white in colour. The modern use of the term buy electrum jewelry gold usually concerns gold alloyed with any one or a combination of nickelsilverplatinum and palladium to produce a silver-coloured gold. Electrum consists primarily of gold and silver but is buy electrum jewelry found with traces of platinumcopperand other metals.
Analysis of the composition of electrum in ancient Greek coinage dating from about BCE shows that the gold content was about In the Hellenistic periodelectrum coins with a regularly decreasing proportion of gold were issued by the Carthaginians.
In the later Eastern Roman Empire controlled from Constantinoplethe purity of the gold coinage was reduced, and an alloy that can be called electrum began to be used. Electrum is mentioned in an account of an expedition sent by Pharaoh Sahure of the Fifth dynasty of Egypt see Sahure. It is also discussed by Pliny the Elder in his Naturalis Historia.
Electrum was much better for coinage buy electrum jewelry goldmostly because it was harder and more durable, but also because techniques for refining gold were not widespread at the time. In Lydiaelectrum was minted into 4. Three of these coins with a weight of about To complement the stater, fractions were made: Larger denominations, such as a one stater coin, were minted as well. Because of variation in the composition of electrum, it was difficult to determine the exact worth of each coin.
Widespread trading was hampered by this problem, as cautious foreign merchants offered poor rates on local electrum coin. These difficulties were eliminated in BCE when pure silver coins were introduced. However, electrum currency remained common until approximately BCE. The simplest reason for this was that, because of the gold content, one From Wikipedia, the free encyclopedia. This article is about the metal buy electrum jewelry. For the buy electrum jewelry, see Electrum sculpture.
For the color, see Green-yellow. For the Israeli buy electrum jewelry, see Zvika Greengold. This section does not cite any sources. Please help improve this section by adding citations to reliable sources. Unsourced material may be buy electrum jewelry and removed.
April Learn how and when to remove this template message. Draw plate File Hammer Buy electrum jewelry Pliers. Gold Palladium Platinum Rhodium Silver. Bog-wood Hair Shell jewelry Toadstone. Carat mass Carat purity Finding Millesimal fineness Art jewelry. Retrieved buy electrum jewelry " https: Gold Coinage metals and alloys Precious metal alloys Silver Copper alloys.
Articles needing additional references from April All articles needing additional references All articles with unsourced statements Articles with unsourced statements from September Views Read Edit View history.
In other projects Wikimedia Buy electrum jewelry. This page was last edited on 30 Aprilat By using this site, you buy electrum jewelry to the Terms of Use and Privacy Policy. Wikimedia Commons has media related to Electrum.
/electrum-griffin-58b5bc505f9b586046c5e837.jpg)
Macquarie Bank option trading whatsapp group Online Share Trading. You will work in a small team to form a. The results are not indicative of future performance or success. All thanks to the fabulous profits в unique, dramatic intermediate declines в in a single, new kind of investment vehicle cryptocurrencies.