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.

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.

What Is Gold?

What is Gold? Gold is a metallic element with atomic number 79 and symbol Au. While gold's name comes from the Old English word meaning yellow, the symbol comes from the Latin aurum, meaning "dawn."

In the periodic table of elements, gold was found in Group 11, along with silver, copper, and roentgenium, and Period 6 between platinum and mercury. This is referred to as the "transition metals" and a metal, the soft resilient. Described as yellow, gold is one of the so-called precious metals, along with silver.

Stack of Gold

Known from ancient times - along with the mercury, sulfur, copper, silver, tin, and lead - gold was used as early 6000 BC Early uses including jewelry, including bracelets and rings, and ornaments. Flexibility means that the initial use of the individual items is practically impossible, so it is restricted to the decor. The civilization that used it, including Egypt, Greece, Mesopotamia and Rome.

Gold was discovered in the second layer of deposits and placer deposits, and naturally uncombined. While the biggest deposits found in South Africa, deposit notes also located in Australia, the Soviet Union, and a number of Western countries from the United States, including in Southwest Arizona, California, Montana, and Washington in the Pacific Northwest, and South Dakota in the Midwest.