Metal Clay Wikipedia
Precious Metals
Bullion
A 500 gram silver bullion bar produced by Johnson Matthey
American Platinum Eagle bullion coin
A metal is considered too precious if it is rare. The discovery of new sources of ore or improvements in mining or refining processes may reduce the value of a precious metal. The status of a "noble" Metal can also be determined by high demand or market value. Precious metals in bulk form known as ingots, and are traded on the commodity markets. Bullion metals may be cast into bars or into coins. The defining feature is bullion that is valued by its mass and purity as not a face value of money.
Many nations mint gold coins. Although nominally issued legal tender, these coins' face value as currency is far below its value as of precious metal. For instance, Canada mints a gold bullion coin (the Gold Maple Leaf), with a face value of $ 50 containing one troy ounce (31.1035 grams) of gold in July 2009, this Coin worth about $ 1,075 as gold bullion. [Edit] Bullion coins' minting by national governments gives them some numismatic value in addition to their bullion value and the recognition of their purity.
1000 oz silver bar
The degree of purity varies from issue to issue. 99.9% purity is common. The pure gold coins are in mass production of the Canadian Maple Leaf Gold series, go up to 99.999% purity. Note that is not a 100% pure precious metal possible as the absolute purity in extracted and refined metals can be approached only asymptotically. Many gold coins contain a stated quantity (such as an ounce) on the edge the impure alloy. In contrast, the Krugerrand a lot of historic and modern gold coins of 22 Kt Gold Crown, with a specified level (usually an ounce) of "fine gold" [clarification (define)], with the other component (s) of the alloy making the coin heavier than one ounce total. More gold coins (Example: British Sovereign) state neither the purity nor the fine-gold weight on the coin, but are recognized and consistent in their composition, requires [edit] and many historically stated a denomination in currency (example: American Double Eagle).
One of the largest gold coin in the world is the $ 10,000 Australian Gold Nugget coin coined in Australia, which consists of a full kilogram of 99.9% pure gold. There are a small number of larger bullion coins have been but they are impractical to handle and not produced in mass quantities. China has produced coins minted in very limited quantities (less than 20 units) that 260 Oz (8 kg) does not exceed by gold. [Edit] Austria has a coin with 31 kg of gold (the Vienna Philharmonic coined coined in 2004 with a nominal value 100,000 €). As a stunt to 99.999% of the pure-ounce gold Canadian Maple Leaf series publishing in 2007, the Royal Canadian Mint has a 99.999% 100 kg gold coin with a nominal value $ 1,000,000, and now it produces to order, but with a significant premium to the market value of gold.
Gold and silver are often used as a hedge against inflation and economic crisis seen. Silver coins are popular with collectors because of their relative affordability, and unlike most gold and platinum issues which evaluated on the basis the markets are, are questions more often than silver valued collectables, far higher than their actual bullion value. PAMP (Produits Artistiques Metaux Precieux) CH-6874, Castel San Pietro, Switzerland deals with Gold Bullion Metal Fineness: 995.0 Rand Refinery Limited, Germiston, South Africa also deal with Gold Bullion Metal Fineness: 995.0
Aluminum
An example of a noble metal, which is now common, that of aluminum. Although aluminum is one of the most common elements on Earth, it was found at once to be very difficult to extract from its various ores. This made the little available pure aluminum, the great expense was refined, more valuable than gold. Bars of aluminum, in addition to the French crown jewels at the World Exhibition 1855 exhibited [edit] Napoleon III and most important guests aluminum cutlery were given, while the less valuable dined with bare silver. In addition, the pyramidal top is made from pure aluminum to Washington Monument. At the time of the memorial construction, aluminum was more expensive than silver. Over time, however, the price of the metal has declined, and the invention of the Hall Hroult process in 1886 caused the high price of aluminum permanently] collapse [Edit.
Bismuth and tellurium
Bismuth and tellurium are the only two metals, the frequencies of less than 10-8 by the mass production part (g / g) in the earth's crust, but is currently not of high economic value. [Edit]
Rough world market prices
Precious metal prices include all precious metals names in bold
Metal
Mass abundance
Price 10/04/2009
Price 22/07/2009
Price 07/01/2010 [] Edit
0
0
0
0
Platinum
5 ppb
$ 42,681 / Kg
$ 37,650 / kg
$ 49,995 / kg
Rhodium
1 ppb
$ 39,680 / kg
$ 46,200 / Kg
$ 88,415 / Kg
Gold
4 ppb
$ 31,100 / kg
$ 30,590 / kg
$ 3,637 / kg
Iridium
1 ppb
$ 14,100 / Kg
$ 12,960 / kg
$ 13,117 / kg
Osmium
1.5 ppb
$ 13,400 / kg
$ 12,200 / kg
$ 12,217 / Kg
Palladium
15 ppb
$ 8,430 / kg
$ 8,140 / kg
$ 13,632 / kg
Rhenium
0.7 ppb
$ 7,400 / kg
$ 7,000 / kg
$ 6,250 / kg
Ruthenium
1 ppb
$ 2,290 / kg
$ 2,730 / kg
$ 5,562 / kg
Germanium
1500 ppb
$ 1,050 / kg
$ 1,038 / kg
Beryllium
2800 ppb
850 $ / kg [edit]
Silver
75 ppb
$ 437 / kg
$ 439 / kg
$ 588 / kg
Gallium
19 000 ppb
$ 425 / kg
$ 413 / kg
Indium
250 ppb
$ 325 / kg
$ 520 / kg
Tellurium
1 ppb
$ 158.7 / kg
Mercury
85 ppb
$ 18.9 / kg
$ 15.95 / kg
Bismuth
8.5 ppb
$ 15.4 / kg
$ 18.19 / kg
See also
Bullion coins
Gold as an investment
Silver as an Investment
Palladium as an investment
Platinum as an investment
Precious Metals
Gem
Mark
Bars
Taxation of precious metals
Troy weight
Metal as money
Northwest Territorial Mint
Synthesis of noble metals
References
^ Platinum Guild: Applications beyond expectation
^ Gold Bullion Facts from freegoldtips.com
^ AB Aluminium metal not uncommon Past, Chemical Heritage magazine, Winter 2007 / 8, Vol.27, No.4
^ George J. Binczewski (1995). "The Point a Monument: A History of the aluminum cap of the Washington Monument. JOM 47 (11): 2025th http://www.tms.org/pubs/journals/JOM/9511/Binczewski-9511.html.
^ The abundance of the element, a measure of its rarity, is in mass fraction in kg / kg in the earth's crust (CRC Handbook). David R. Lide, ed (2005). "Section 14, geophysics, astronomy and acoustics, frequency of elements in the Earth's crust and in the sea. "CRC Handbook of Chemistry and Physics (85 ed.) Boca Raton, Florida: CRC Press.
^ All prices shown on 10 April 2009 be taken mainly from London Metal Exchange.
^ Data of 22 July 2009 thebulliondesk.com from the [need for clarification (URL?)] Incorporated, unless otherwise indicated.
^ Abc The prices for metal gallium, germanium and indium are from MinorMetals.com as examples of modern metals be used for investment / speculation made.
External Links
Sources of the current metal prices
Online real-time prices of precious metals from thebulliondesk.com
One year price charts for light metals
Kitco Current metal
Spyker International Bullion Services
Measurement and modification of precious metals
Organizations
International Precious Metals Institute
vde
Jewelry
Forms
Anklet Belly Belt Buckle Bracelet Brooch Chatelaine Crown Cufflinks Pin Earrings Necklace Pendant Ring Tiara Tie Clip Watch (pocket)
Production
People
Bench Jeweler Goldsmith Designer Jewelry Lapidary Watchmaker
Processes
Casting (centrifugal, investment casting, vacuum) Enameling Engraving Filigree Metal Plating Polishing tone repousse and chasing Soldering Stone Setting wire wrapping
Tools
Draw Plate File Mandrel Hammer Pliers
Materials
Precious metals
Gold Palladium Platinum Rhodium Silver
Precious metal alloys
Britannia silver Gold Electrum Gold Crown Platinum Sterling Silver Sterling Shakudo Shibuichi Tumbaga
Base metals / alloys
Brass Bronze Copper Tin Kuromido stainless steel titanium
Mineral Gems
Aventurine Agate Alexandrite Amethyst Aquamarine Carnelian Citrine Diamond Emerald Garnet Jade Jasper Malachite Lapis lazuli Moonstone Obsidian Onyx Opal Peridot Quartz Ruby Sapphire Sodalite Sunstone Tanzanite Tiger Eye Topaz Tourmaline
Organic Gems
Amber Copal Coral Jet Pearl Abalone
Conditions
Carat (mass) Carat (purity) Finding fineness
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