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%

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.

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.

Gold as Investment

Many holders of gold store it in form of bullion coins or bars as a Hedge against inflation or other economic interference. However, some economists do not believe gold serves as a Hedge against inflation or currency depreciation.

ISO 4217 currency code of gold is XAU.

Modern bullion coins for investment or collector purposes do not require good mechanical wear properties, they are typically fine gold at 24k, although the American Gold Eagle and British gold sovereign continue to be printed in 22k metal in historical tradition, and South Africa Krugerand, was first released in 1967, also 22k. The special issue in Canada Gold Maple Leaf coin contains the highest purity gold of any bullion coin, at 99.999% or 0.99999, while the popular issue Canadian Gold Maple Leaf coin has a purity of 99.99%.

Several other 99.99% pure gold coins. In 2006, the United States Mint began production of the American Buffalo gold bullion coin with a purity of 99.99%. Australian Gold Kangaroos was first coined in 1986 as the Australian Gold Nugget but changed the reverse design in 1989. Among other famous modern coin Austria Vienna Philharmonic bullion coin and the Chinese Gold Panda.

Gold Price History 'till Jan 2012

Source: Wikipedia

Gold As Monetery Exchange - Price History

Gold has been widely used around the world as a vehicle for monetary exchange, either by issuance and recognition of gold coins or the amount of empty iron, gold or via conversion of paper instruments by establishing gold standards in which the total value of issued money is represented in a store of gold proposal.

Gold Standard Bar

The first gold coins of the Greek age hit in Lydia in 700 BC when approached for years. Talents of gold coins that are used during the period of Greek history prior to and during the life of Homer weighed between 8.42 and 8.75 grams. From previous preference in the use of silver, the European economy back erect minting gold as currency for centuries of the thirteenth and fourteenth centuries.

However, production has not grown in relation to the world economy. Today, gold mining output declined. With the sharp growth in the 20th century, and increasing foreign exchange, the world gold trade market recommendations and they have become a small part of the whole market and currency exchange rate fixed to gold is no longer maintained.

At the beginning of World War I fighting countries move to fractional gold standard, inflate their currencies to finance the war effort. After World War II gold replaced by a system of currency conversions follow the Bretton Woods system. Konvertibilitas gold standard and direct from the currency to gold have been abandoned by world governments, replaced by fiat currency to replace them. Switzerland was the last country to tie the money currency with gold, but supported 40% of its value until the Swiss joined the International Monetary Fund in 1999.