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Gold Coin
A gold coin is a coin that is made mostly or entirely of gold. Most gold coins minted since 1800 are 90–92% gold (22fineness#Karat, karat), while most of today's gold bullion coins are pure gold, such as the Britannia (coin), Britannia, Canadian Gold Maple Leaf, Canadian Maple Leaf, and American Buffalo (coin), American Buffalo. Alloyed gold coins, like the American Gold Eagle and South African Krugerrand, are typically 91.7% gold by weight, with the remainder being silver and copper. Until about the 1930s, gold coins were Circulation (currency), circulation coins, including Exonumia, coin-like bracteates and Gold dinar, dinars. Since then, gold coins have mainly been produced as bullion coins for Gold as an investment, investors and as commemorative coins for Coin collecting, collectors. While modern gold coins are still legal tender, they are not used in everyday financial transactions, as the metal value invariably exceeds the Real versus nominal value (economics), nominal ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Dubai Gold Coins
Dubai (Help:IPA/English, /duːˈbaɪ/ Help:Pronunciation respelling key, ''doo-BYE''; Modern Standard Arabic, Modern Standard Arabic: ; Emirati Arabic, Emirati Arabic: , Romanization of Arabic, romanized: Help:IPA/English, /diˈbej/) is the List of cities in the United Arab Emirates#Major cities, most populous city in the United Arab Emirates and the capital of the Emirate of Dubai. It is located on a Dubai Creek, creek on the south-eastern coast of the Persian Gulf, Persian Gulf. As of 2025, the city population stands at 4 million, 92% of whom are Expatriates in the United Arab Emirates, expatriates. The wider urban area includes Sharjah and has a population of 5 million people as of 2023,https://www.demographia.com/db-worldua.pdf while the Dubai–Sharjah–Ajman metropolitan area counts 6 million inhabitants. Founded in the early 18th century as a Cultured pearl, pearling and fishing settlement, Dubai became a regional trade hub in the 20th century after declaring itself a f ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Coin Collecting
Coin collecting is the collecting of coins or other forms of Mint (facility), minted legal tender. Coins of interest to collectors include beautiful, rare, and historically significant pieces. Collectors may be interested, for example, in complete sets of a particular design or denomination, coins that were in circulation for only a brief time, or coins with mint error, errors. Coin collecting can be differentiated from numismatics, in that the latter is the systematic study of currency as a whole, though the two disciplines are closely interlinked. Many factors determine a coin's value including grade, rarity, and popularity. Commercial organizations offer coin grading, grading services and will grade, authenticate, attribute, and encapsulate most coins. History People have hoarding, hoarded coins for their bullion value for as long as coins have been minted. However, the collection of coins for their artistic value was a later development. Evidence from the archaeologica ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ancient Near East
The ancient Near East was home to many cradles of civilization, spanning Mesopotamia, Egypt, Iran (or Persia), Anatolia and the Armenian highlands, the Levant, and the Arabian Peninsula. As such, the fields of ancient Near East studies and Near Eastern archaeology are one of the most prominent with regard to research in the realm of ancient history. Historically, the Near East denoted an area roughly encompassing the centre of West Asia, having been focused on the lands between Greece and Egypt in the west and Iran in the east. It therefore largely corresponds with the modern-day geopolitical concept of the Middle East. The history of the ancient Near East begins with the rise of Sumer in the 4th millennium BC, though the date that it ends is a subject of debate among scholars; the term covers the region's developments in the Bronze Age and the Iron Age, and is variously considered to end with either the establishment of the Achaemenid Empire in the 6th century BC, the establi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Gold Solidus Of Valentinian II - Obverse YORYM 1998 853
Gold is a chemical element; it has chemical symbol Au (from Latin ) and atomic number 79. In its pure form, it is a bright, slightly orange-yellow, dense, soft, malleable, and ductile metal. Chemically, gold is a transition metal, a group 11 element, and one of the noble metals. It is one of the least reactive chemical elements, being the second-lowest in the reactivity series. It is solid under standard conditions. Gold often occurs in free elemental ( native state), as nuggets or grains, in rocks, veins, and alluvial deposits. It occurs in a solid solution series with the native element silver (as in electrum), naturally alloyed with other metals like copper and palladium, and mineral inclusions such as within pyrite. Less commonly, it occurs in minerals as gold compounds, often with tellurium ( gold tellurides). Gold is resistant to most acids, though it does dissolve in aqua regia (a mixture of nitric acid and hydrochloric acid), forming a soluble tetra ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Achaemenid Coin Daric 420BC Front
The Achaemenid Empire or Achaemenian Empire, also known as the Persian Empire or First Persian Empire (; , , ), was an Iranian peoples, Iranian empire founded by Cyrus the Great of the Achaemenid dynasty in 550 BC. Based in modern-day Iran, it was the List of largest empires#Timeline of largest empires to date, largest empire by that point in history, spanning a total of . The empire spanned from the Balkans and ancient Egypt, Egypt in the west, most of West Asia, the majority of Central Asia to the northeast, and the Indus Basin, Indus Valley of South Asia to the southeast. Around the 7th century BC, the region of Persis in the southwestern portion of the Iranian plateau was settled by the Persians. From Persis, Cyrus rose and defeated the Medes, Median Empire as well as Lydia and the Neo-Babylonian Empire, marking the establishment of a new imperial polity under the Achaemenid dynasty. In the modern era, the Achaemenid Empire has been recognised for its imposition of a succ ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Counterfeit
A counterfeit is a fake or unauthorized replica of a genuine product, such as money, documents, designer items, or other valuable goods. Counterfeiting generally involves creating an imitation of a genuine item that closely resembles the original to deceive others into believing it is authentic. Counterfeit products are often made to take advantage of the higher value of the original product, typically using lower-quality materials or production methods. Counterfeit food, drinks, medicines, and personal care products can contain harmful or inactive ingredients, causing anything from mild issues to serious, life-threatening ones. Counterfeit footwear, clothing, and accessories have been found to contain high levels of lead, arsenic, and phthalates. Forgery of money or government bonds Counterfeit money is currency that is produced without the legal sanction of the state or government; this is a crime in all jurisdictions of the world. The United States Secret Service, mostly ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Density
Density (volumetric mass density or specific mass) is the ratio of a substance's mass to its volume. The symbol most often used for density is ''ρ'' (the lower case Greek letter rho), although the Latin letter ''D'' (or ''d'') can also be used: \rho = \frac, where ''ρ'' is the density, ''m'' is the mass, and ''V'' is the volume. In some cases (for instance, in the United States oil and gas industry), density is loosely defined as its weight per unit volume, although this is scientifically inaccurate this quantity is more specifically called specific weight. For a pure substance, the density is equal to its mass concentration. Different materials usually have different densities, and density may be relevant to buoyancy, purity and packaging. Osmium is the densest known element at standard conditions for temperature and pressure. To simplify comparisons of density across different systems of units, it is sometimes replaced by the dimensionless quantity "relative den ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Fungible
In economics and law, fungibility is the property of something whose individual units are considered fundamentally interchangeable with each other. For example, the fungibility of money means that a $100 bill (note) is considered entirely equivalent to another $100 bill, or to twenty $5 bills and so on, and therefore a person who borrows $100 in the form of a $100 bill can repay the money with another $100 bill, with twenty $5 bills and so on. Non-fungible items are not considered substitutable in the same manner, even if essentially identical. Fungibility is an important concept in finance and commerce, where financial securities, currencies and physical commodities such as gold and oil are normally considered fungible. Fungibility affects how legal rights, such as the ownership of assets in custody and the right to receive goods under a contract, apply in certain circumstances, and it thereby simplifies trading and custody. Fungibility refers only to the equivalence and i ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Gold Bar
A gold bar, also known as gold bullion or a gold ingot, is a quantity of refined metallic gold that can be shaped in various forms, produced under standardized conditions of manufacture, labeling, and record-keeping. Larger varieties of gold bars, produced by casting molten metal into molds, are called ingots. Smaller bars are often created through minting or stamping from rolled gold sheets. Central banks typically hold the standard Good Delivery gold bar in their gold reserves and it is widely traded among bullion dealers. Additionally, the kilobar, weighing , and the gold bar are popular for trading and investment due to their more manageable size and weight. These bars carry a minimal premium over the spot price of gold, facilitating small transfers between banks and traders. While most kilobars have a flat appearance, a preference for brick-shaped bars exists among some investors, particularly in Europe. Types Gold bars are classified based on their production pro ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Central Bank
A central bank, reserve bank, national bank, or monetary authority is an institution that manages the monetary policy of a country or monetary union. In contrast to a commercial bank, a central bank possesses a monopoly on increasing the monetary base. Many central banks also have supervisory or regulatory powers to ensure the stability of commercial banks in their jurisdiction, to prevent bank runs, and, in some cases, to enforce policies on financial consumer protection, and against bank fraud, money laundering, or terrorism financing. Central banks play a crucial role in macroeconomic forecasting, which is essential for guiding monetary policy decisions, especially during times of economic turbulence. Central banks in most developed nations are usually set up to be institutionally independent from political interference, even though governments typically have governance rights over them, legislative bodies exercise scrutiny, and central banks frequently do show resp ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Gold Reserve
A gold reserve is the gold held by a national central bank, intended mainly as a guarantee to redeem promises to pay depositors, note holders (e.g. paper money), or trading peers, during the eras of the gold standard, and also as a store of value, or to support the value of the national currency. The World Gold Council estimates that all the gold ever mined, and that is accounted for, totalled 190,040 metric tons in 2019How much gold has been mined? ", World Gold Council but other independent estimates vary by as much as 20%. At the price of $40 per gram reached on 16 August 2017, one metric ton of gold has a value of approximately $40.2 million. The total value of all gold ever mined, and that is accounted for, would exceed $7.5 trillion at that valuation and using WGC 2017 esti ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Denomination (currency)
Denomination is a proper description of a currency amount, usually for coins or banknotes. Denominations may also be used with other means of payment such as gift cards. For example, ''five euros'' is the denomination of a five-euro note. Subunit and super unit In a currency, there is usually a main unit (base) and a subunit that is a fraction of the main unit. In some countries, there are multiple levels of subunits. In the former Ottoman Empire, 1 lira = 100 uruş= 4000 para = 12000 kçe Today, only a few places have more than one subunit, notably the Jordanian dinar is divided into 10 dirham, 100 qirsh/piastres, or 1000 fils. Many countries where Western European languages are spoken currently have their main units divided into 100 subunits. Some currencies that previously had subunits no longer do, because inflation has rendered the subunit useless. A prominent example is the Japanese yen, which was formerly divided into 100 sen or 1000 rin. Both subunits were demonetized a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
