Chalcopyrite is also known as Peacock Ore because of its lovely iridescent green, blue, pink, purple, and gold colors that resemble the feathers of a peacock. The colors of Chalcopyrite come from the oxidation of copper and iron in the crystal. It’s a common mineral that can be found in most sulfide deposits.

Each and every type of mineral is different from each other depending on the chemical composition. The main difference between pyrite and chalcopyrite is that the chemical composition of pyrite is FeS2 whereas the chemical composition of chalcopyrite is CuFeS2.

: a yellow mineral that consists of a sulfide of copper and iron and is an important copper ore.

Chalcopyrite is usually formed in the primary hydrothermal zone. Chalcocite can also be formed as part of primary mineralization (e.g. iron oxide hosted copper-gold deposit), but more frequently as a secondary enrichment mineral (Anthony et al., 1990).

Problem 5: Cu+ ion has 3d104s0 configuration and colourless but Cu2O is red and Cu2S is black.

Chalcopyrite also contains gold, nickel, and cobalt in solid solution and may be closely associated with PGMs formed by mafic/ultramafic igneous intrusive and in greenstone belts. Chalcopyrite is the primary source of copper metal associated with many high value commodities.

It seems that gold is often found with other metal bearing minerals including iron. These are called indicator minerals….Lode Gold:

pyrite

The Mineral gold. Much of the gold mined is actually from gold ore rather then actual Gold specimens. The ore is often brown, iron-stained rock or massive white Quartz, and usually contains only minute traces of gold. To extract the gold, the ore is crushed, then the gold is separated from the ore by various methods.

Most of the world’s gold ore is used to create jewelry and decorative items. Ore is a deposit in Earth’s crust of one or more valuable minerals. The most valuable ore deposits contain metals crucial to industry and trade, like copper, gold, and iron. Copper ore is mined for a variety of industrial uses.

Gold itself is generally not shiny, at least not reflectively. It is brilliant and golden, but its color does not vary in different light. While minerals like pyrite will virtually disappear when you take them out of direct sunlight, gold is easily visible whether it is in the sun or not.

Every river in the world contains gold. However, some rivers contain so little gold that one could pan and sieve for years and not find even one small flake. After rigorous chemical analyses, rocks that are found to contain gold in levels where only one part in one million is gold can be professionally mined.

Look for quartz in the rock veins you’ve found. It is a very heavy and strong crystalline-looking mineral that usually occurs in white, though it may also be clear, pink or gray. Set your metal detector to find gold and slowly wave it back and forth over the veins of quartz.

The most gold-bearing rivers of the world

• Gold in the rivers of Lapland (Finland)
• Gold in the Madre de Dios river (Peru)
• Gold of the American River (USA)

Yes, gold can be found in rivers and streams though not the kind of gold we see in movies. Instead of the typical large golden nuggets, gold in creeks are usually found in tiny amounts, either as flakes or grains. These are called ‘alluvial gold’. It is important to know that gold is a heavy element.

Dahlonega

the Welcome Stranger

Between all of the gold sources in the world, current estimates suggest that roughly 2,500 to 3,000 tons of new gold is mined each year. At present, experts believe that the total amount of above ground gold in the world stands at just over 190,000 tons.

Countries With the Largest Gold Reserves in the World

• United States: 8,133.5 tons.
• Germany: 3,362.4 tons.
• Italy: 2,451.8 tons.
• France: 2,436.2 tons.
• Russia: 2,295.4 tons.

Most nuggets are between 85 percent and 95 percent pure gold, but the remainder can be one of several kinds of minerals. Nuggets in laterite can be either reddish or black; nuggets in quartz appear cloaked with white.

Refiners prepare gold in bars of high purity, often at 99.9 percent fineness. However, raw gold is alloyed to other metals and therefore is not as pure. Gold Rush Nuggets reports that raw Alaskan gold varies in purity, from 70 percent to 92 percent pure. Most raw gold is available as dust, flakes and small pieces.

A natural 1 gram gold nugget containing 95% pure gold is worth $48.82, today….We buy natural gold nuggets and artificial gold nuggets.

Value Comparison While gold nuggets are generally more valuable than gold bars, particularly if they are large and rare nuggets, if your gold bar is a rare gold coin it could be worth more than a gold nugget. If, however, you own a standard gold bar, a gold nugget is more valuable.

In early 2016 it’s hovering around $39 per gram. But because placer gold isn’t pure gold, it’s typically 70 to 90-percent pure, your placer gold is only worth 70 to 90-percent of $39. Gold buyers are only interested in the actual amount of gold your selling them.

Small gold particles are called fine gold because thy will pass through the holes of a very fine mesh screen. Placer gold is never pure gold. Gold is always found as a natural alloy. It runs anywhere from 50% on up to 96% pure gold.