Friday, 28 December 2012

10 Biggest Gold Mines in the World


The following list draws from each of these sources, as well as others, and thus is not a simple duplication of any one group's rankings.

1. Grasberg Gold Mine -- This mine, which is in the Indonesian province of Papua, produced 2,025,000 ounces of gold, according to the annual report of Rio Tinto Plc. The mine is majority owned by Freeport-McMoRan Copper & Gold Inc. Besides gold, it also produces silver and copper.
Grasberg - Indonesia
2. Muruntau Gold Mine -- This mine, which is about 250 miles west of the capital in Uzbekistan, is believed to have produced approximately 1,800,000 ounces of gold last year. The project, which is an open-pit operation, is run by state-owned Navoi Mining and Metallurgical Combinat.
Muruntu - Uzbekistan 
3. Carlin-Nevada Complex -- This mine, which is in the U.S. state of Nevada, produced 1.735 million ounces in 2010. It is owned by Newmont Mining Corp. It includes both open-pit and underground operations.
Carlin-Nevada Complex 

Friday, 21 December 2012

What is Silver?


Silver chemical symbol and atomic number 47 (: άργυρος <Argyros> Latin, Argentum, or Indo - European root * arg for "gray" or "shining" in Greek) is a metallic chemical element with the AG. Soft, white, shiny transition metal, it has the highest electrical conductivity of any element and the highest thermal conductivity of any metal. Its pure form, free (native silver) in metallic gold and other metals and minerals, such as argentite and chlorargyrite occurs naturally as an alloy. Most silver, copper, gold, lead, zinc, and is produced as a by-product of refining.

Silver is a very ductile malleable (slightly harder than gold), monovalent metal coins brilliant white metallic luster that can take a high level of gloss s highest electrical conductivity of all metals, even higher than copper, but the costs are becoming more and more widely used in place of copper for electrical purposes. Except radio engineering in the VHF and higher frequencies, where silver, including wires, improving the electrical conductivity of parts, widely used, particularly. During the Second World War, 13,540 tons electromagnets used for enriching uranium, mainly due to lack of copper used in time of war.

Sunday, 16 December 2012

Gold in Big Picture: Part 7 - Final

Gold bars are pictured at the Ginza Tanaka store in Tokyo October 23, 2009. (REUTERS/Issei Kato) 

Gold busts of (l-r) Chinese leaders President Hu Jintao, former president Jiang Zemin, late patriarch Deng Xiaoping and Mao Zedong, are displayed at a gold exhibition in Beijing, China on November 8, 2009. (WANG ZHAO/AFP/Getty Images)

Saturday, 15 December 2012

Gold in Big Picture: Part 6

Illegal miners search for gold on the mountain of Tumpang Pitu in Banyuwangi, East Java, Indonesia on November 21, 2009. The mine has been in operation since June 2009 and local villagers have began protesting because the waste produced by the mine is polluting the environment. (REUTERS/Sigit Pamungkas)

Molten gold and flux used to remove impurities glows red hot as it is melted in an induction melting machine at Dvir & Stoler Refining in New York, U.S., on Monday, Jan. 4, 2010. (Daniel Acker/Bloomberg)

Friday, 14 December 2012

Gold in Big Picture: Part 5

Gold-plated Berlin Bear awards are lined up for the upcoming Berlinale International Film Festival at Noak bronze foundry in Berlin January 20, 2010. (REUTERS/Fabrizio Bensch)

A carbon recovery circuit adsorbs gold in a sodium cyanide solution at the AngloGold Ashanti Ltd. Cripple Creek & Victor gold mine in Colorado on Thursday, Nov. 5, 2009. (Matthew Staver/Bloomberg)

Thursday, 13 December 2012

Gold in Big Picture: Part 4

A Caterpillar Inc. mining truck moves along a road at the AngloGold Ashanti Ltd. Cripple Creek & Victor gold mine in Victor/Cripple Creek, Colorado, on Thursday, Nov. 5, 2009. AngloGold Ashanti Ltd., Africa's largest gold producer, purchased Golden Cycle Gold Corp. in January 2008 to gain full control of this mining site, its only active operation in the U.S. (Matthew Staver/Bloomberg)

A Christie's employee looks at a creation "Relief Eponge" by Yves Klein on display at the auction house in London, Wednesday, Jan. 20, 2010. The gold sponge relief creation is to be auctioned at the "Post-war and Contemporary" sale on Feb. 11 with an estimated price of 5.7 to 8 million euros (US $8.2 to 11.4 million). (AP Photo/Sang Tan)

Wednesday, 12 December 2012

Gold in Big Picture: Part 3

A gold miner pushes a wheelbarrow to carry rocks which will be processed for gold in an artisanal mine in Abangares, north of San Jose, Costa Rica on December 9, 2009. Costa Rica is pushing to legalize a 600 informal miners of small-scale miners who scrape out tiny amounts of gold from abandoned mine shafts using dangerous and polluting techniques. (REUTERS/Juan Carlos Ulate)

Colombian gold prospectors mine for the precious metal on the river Dagau, Zaragoza province, Cauca, Colombia on November 17, 2009. About 8,000 gold prospectors work illegally on the Dagua river to support their families, local authorities said. (REUTERS/Jaime Saldarriaga)

Tuesday, 11 December 2012

Gold in Big Pictures: Part 2

Pedro Linares uses a calculator to determine how much the company he works for, Fast Cash Gold Parties, will pay for the gold jewelry that he is weighing on October 30, 2009 in Hialeah, Florida. As the price of gold remains high, the company is busy setting up these modern day Tupperware parties to buy people's unwanted gold in their homes. (Joe Raedle/Getty Images)

Gold figurines on display in a shop window in Hong Kong on November 17, 2009. (MIKE CLARKE/AFP/Getty Images)

Monday, 10 December 2012

Gold in Big Pictures: Part 1

Hava Katz, the head of the national treasures of Israel's Antiquities Authority, holds up a 1,000-year-old gold coin minted in Egypt and dated 1,095 AD, supposedly brought to Jerusalem by Muslim pilgrims, during an exhibition at the Davidson Archeological center in Jerusalem's Old city on November 11, 2009. (GALI TIBBON/AFP/Getty Images)

A statue of a bird of prey made of gold is pictured at a gold and silver exhibition at the Ginza Tanaka store in Tokyo October 23, 2009. (REUTERS/Issei Kato)

Sunday, 9 December 2012

Rare Things from Gold


7. * Sushi Gold *

In the Philippines, a Manila-based chef creates entrée consists of five pieces of sushi luxe. Although sushi is not deviate from common materials, but the food is wrapped with thin bands of 24-karat gold and diamond Africa
Sushi Gold

With a price of $ 2,750 per share, make sure you do not leave the gold and diamonds in the trash


6. * Gold Facial *

Originally made in Japan, facial face with a layer of 24 carat gold. Very luxurious spa treatments are said to firm the skin and reduce wrinkles and sun spots. The cost for all of about U.S. $ 500


5. * Toilet Gold ***

Tourists from around the world will stop in Hong Kong to see the toilet Hang Fung's solid 24-karat gold. Throne shiny gold along with other equipment to complete your nature's call. With the cost of making about 5 million U.S. dollars, people will rely more're excited to take pictures there, rather than sit

Gold Vibrator

4. * Gold Vibrator *

Lelo Yva's 18 karat gold at a price of $ 2,580, making a living without a spouse to be very costly ...

Source: Healthy; Active


3. * Gold * Barbecue Grills

barbeque grill is made and also the 24-carat gold plated for $ 12.500.


Saturday, 8 December 2012

White Gold - Gold Value


White gold is a mixture of gold and other metals that are white such as Nickel (Ni), silver (Ag), Palladium (Pd), Platinum (Pt) or Rhodium (Rh). There is a mixture of white metals will change color from yellow to white gold. Brilliant white gold color so it is necessary Plating (in the elderly) with Rhodium. Platingnya long it will disappear and the white gold needs to be rhodium plated again with brilliant color.

White Gold Ring
Platinum can also be used for jewelry. Platinum (Pt) is the white metal. In jewelery, the purity of platinum unit declared with Pt900, Pt950 and Pt1000. Pt900 platinum jewelry means that 90% (900 from 1000). Commonly used in jewelry are Pt900 and Pt 950, although there are also Pt 1000 (pure platinum). Platina 2 times heavier than gold. Price pergram is 2 to 2.5 times more expensive than gold. So for the same design (same shape), the Platina will ring 4-5 times more expensive than gold. Therefore, bracelet or necklace of platinum will be very rare because they are very expensive. Platinum color will never fade.

Friday, 7 December 2012

Gold Bonding - Makes Gold Value Higher


Gold Bonding is a bright, hard, durable finish for gold. This should not be confused with gold plating! Soldering gold jewelry that looks and feels a lot like gold Karat 14 or 18, not even a jeweler can visually tell the difference!

A term for gold yellow gold overlay welding or Contains. However, not all connections, gold is created equal. All our products are Gold Gold Bonded with 50 mils (or layers) of pure gold. 25 first layer of pure 24K gold. Monday is the 25th grade pure 14k gold. Thus, the concentration of gold All our products is a 24k concentration, but with the color 14k gold market.

Golden Links is proud of us here in the United States for quality control. Our manufacturer with experience over 30 years, is one of the few domestic manufacturers have quality control standards of Gold Bonding meet or exceed federal standards.
Gold Jewelry: Makes Gold Value Higher

The inclusion of a lifetime warranty certificate for each affiliate products Gold is to ensure total commitment to meet the federal standards.

How is the land.

Production process is as follows. We first start with a high quality metal base. Unlike other jewelry metals, which are used in the industry, which is about the same weight and flexibility of 14 and 18 carat gold, but more powerful. Then, just as the process of copper, gold and other metal jewelry »Power is connected to the brass to ensure an effective seal and to provide a smooth surface, but on the bright to apply the first layer 25 of the 24 carat gold. There are ... 24 carat pure gold. This makes our jewelry looks and feels like real gold at a fraction of the cost!

Unlike most manufacturers, the products go through a costly two-stage process. Thus, after the first 25 levels of 24 Karat gold is set, add 25 class 14 or 18 carat gold to be connected to the product.

Thursday, 6 December 2012

Names for Gold


There are several gold name based on the type of metal mixtures:

Blue gold, gold and iron mixture.
Green gold, gold with a mix of silver more than copper.
Pink gold or Rose gold, a mixture of 50% gold, 45% copper 5% silver.
White gold, gold with a mix of nickel, zinc, copper, lead, and manganese.
Yellow gold, a mix of 50% gold, 25% silver and 25% copper.

Green Gold

In addition there was also the name of Nordic Gold, a metal mixture to affect the color of gold, but it does not belong to citizens. Generally used in the manufacture of jewelry or coins. Composition is 89% copper, 5% aluminum, 5% zinc, and 1% tin. and never contain gold.

Wednesday, 5 December 2012

Gold Carat Related with Gold Value


Gold is now a trend. Whether it's for investment or for jewelry. Or both. Actually this is not a new story. But since the world are now familiar with the economic crisis and inflation, people began to look at gold as an investment media who (he says) the price is stable and always up.

Gold is a metallic element that is soft, shiny, yellow, heavy, malleable, and ductile. And the most important is the nature of the gold that is not easily react with other chemicals that make noble material, has the chemical symbol Au (from Latin Aurum), has the atomic number 79 and atomic weight 196.97. Its ISO code is XAU. Unit weight of gold is expressed in some units, such as grain, oz, and grams.

Gold Carat Chart

Carat is a constant used to mention the level of gold content. To know the gold, we must first know the term "levels" in gold. The level is the level of purity of the gold, or the amount of gold purity content. Levels are expressed as 24 karat gold. So the levels of 23 carat gold means purity level is (23/24) x 100%, or about 95.8%.

So when the levels of 22-carat gold with a weight of 15 grams of the pure gold content = 22/24 x 15 = 13.75 Grams.

For simplicity, the constants are available to determine the levels of carat unfounded. According to SNI (Indonesian National Standard) - No: SNI 13-3487-2005 carat standard as follows:

CARAT-grade gold

24 K = 99.00 to 99.99%
23 K = 94.80 to 98.89%
22 K = 90.60 to 94.79%
21 K = 86.50 to 90.59%
20 K = 82.30 to 86.49%
19 K = 78.20 to 82.29%
18 K = 75.40 to 78.19%

Tuesday, 4 December 2012

Gold Price - Gold Value

Like other precious metals, gold is measured in troy weight and grams. When alloyed with other metals, the term carat or karat is used to show the purity of gold present, with 24 carat gold is pure and lower ratings proportionally less. Purity and gold bar or coin can also be expressed as a decimal number ranging from 0 to 1, is known as the clarity Milli, such as 0.995 are very clear.

The price of gold is determined by trading in gold and derivatives markets, but a procedure known as the setting of gold in London, originating in September 1919, offers day-to-day reference price in the industry. The afternoon fixing was introduced in 1968 at a price when U.S. markets are open.

A Swiss-cast 1 kg gold bar.
Historically, gold coins were widely used as currency, paper money was introduced, it typically was a receipt to exchange a gold coin or bullion. The monetary system known as the gold standard, a certain weight of gold was given the name of the unit of currency. For a long time, the United States government, the value of the U.S. dollar, so troy ounce is equal to $ 20.67 ($ 664.56/kg), but in 1934 the dollar was devalued to $ 35.00 per ounce ($ 1,125.27 / kg). In 1961, it will be difficult to maintain prices, and agreed to manipulate the market to prevent further currency devaluation against increased gold demand, which pool of U.S. and European banks.

On 17 March 1968, the economic situation has caused the collapse of the gold pool, and two price system was established, where gold is still used to settle international accounts at the old $ 35.00 per troy ounce ($ 1.13 / g) but the price of gold on the private market was allowed to move; This two-tier pricing system was abandoned in 1975 when the price of gold was left to find a market level. Central banks still hold historical gold reserves as a store of value, although the levels are generally declining. The largest gold deposits in the world, the U.S. Federal Reserve Bank of New York, which is 3% of the gold ever mined, as both laden U.S. Bullion deposit Fort Knox. In 2005, the World Gold Council estimated total global gold supply 3859 tonnes and demand to be 3,754 tonnes, which is the excess of 105 tonnes.

Monday, 3 December 2012

Rare Gold Nugget Gallery Part 1

Nuggets are gold fragments weathered out of an original lode. They often show signs of abrasive polishing by stream action, and sometimes still contain inclusions of quartz or other lode matrix material. A gold nugget is a naturally occurring piece of native gold. Watercourses often concentrate nuggets and finer gold in placers. Nuggets are recovered by placer mining, but they are also found in residual deposits where the gold-bearing veins or lodes are weathered. Nuggets are also found in the tailings piles of previous mining operations, especially those left by gold mining dredges.

Crystalline gold from Mina Zapata, Santa Elena de Uairen, Venezuela. Size: 3.7×1.1×0.4 cm

Relative sizes of an 860 kg block of gold ore, and the 30 g of gold that can be extracted from it. Toi gold mine, Japan.

Sunday, 2 December 2012

Gold Mining - Gold Price is Raising


The city of Johannesburg located in South Africa was founded as a result of the Witwatersrand Gold Rush which resulted in the discovery of some of the largest gold deposits the world has ever seen. Gold fields located within the basin in the Free State and Gauteng provinces widely in strike and dip requiring some of the deepest mines in the world, with the Savuka and TauTona mines currently deepest gold mine in the world at 3,777 m. The Second Boer War of 1899-1901 between the British Empire and the Afrikaner Boers was at least partly over the rights of miners and gold gaining wealth in South Africa.
The entrance to an underground gold mine in Victoria, Australia

Other major producers are the United States, Australia, Russia and Peru. Mines in South Dakota and Nevada supply two-thirds of gold used in the United States. In South America, the controversial project Pascua Lama aims at exploitation of rich fields in the high mountains of Atacama Desert, at the border between Chile and Argentina. Today about one-quarter of the world gold output is estimated to originate from artisanal or small scale of mining.

Since the 1880s, South Africa was the source for a large proportion of the world's gold supply, with about 50% of all gold ever produced to be from South Africa. Production in 1970 accounted for 79% of world supply, which produces about 1,480 tonnes. Production for 2008 was 2,260 tonnes. In 2007 China (with 276 tonnes) overtook South Africa as the world's largest gold producer, the first time since 1905 that South Africa is not the greatest.

At the end of 2009, it is estimated that all the gold ever mined totaled 165,000 tonnes. Be represented by a cube with an edge length of about 20.28 meters. At $ 1600 per ounce, 165,000 metric tons of gold would have a value of $ 8.8 trillion.

Source: Wikipedia

Saturday, 1 December 2012

How Gold Was Formed on Earth


Like all elements of atomic numbers larger than iron, gold is a supernova nucleosynthesis process is believed to occur by. The explosion of the space in which they later formed in our solar system and the Earth in the metal-containing dust (heavy elements like gold included) scattered. Because the Earth was molten when it was just, gold exists on Earth has been in almost all the major. Gold that currently most of the planet's crust mantle today and skirmishes during the late heavy bombardment was distributed on Earth.

On Earth, gold ore is found in Precambrian rock formation time. It often occurs as a native metal, usually silver solution (ie gold, silver alloy) Metal closely. Alloys are usually 8-10% of the silver content. Electrum elemental gold with more than 20% silver. Mother with electrum silver color runs from golden-silver, silver, depending on the content. More silver, low specific gravity.

Great Golden:

This 156-troy-ounce (4.9 kg) nugget, known as the Mojave Nugget
was found by an individual prospector in the Southern California Desert
using a metal detector.
Native gold occurs as very small microscopic particles embedded in rock are often called "Fool's Gold", which is pyrite, quartz or sulfide minerals such as with. These deposits, called plaque. Also free to ply their original state in the form of metals, grain or large tumor that has reduced the rocks and alluvial deposits PLACER is found in the form of deposits with the ending. Free gold is always richer at the surface as the gold-bearing veins [clarification needed] with weathering, and streams and rivers, where it collects and can be welding by water action to form a tumor, followed by washing minerals in the dust due to oxidation.