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Where and How Gemstones Are Mined

Dec 7, 2007
You may be wondering exactly how your jewelry came to be. Well, that is a normal question any jewelry enthusiast would ask. You do question how these gems are placed into metal and you also question exactly where these gems came from.

There are gem stone mines everywhere around the world. The most popular are in Brazil, Canada, Mexico, Uruguay and Africa. There are also mines in Europe and the United States, depending on what kind of gem stone you are looking for.

Amethyst - Amethyst is the most valuable kind of quartz. It is found everywhere around the world. For this very reason, it is one of the most affordable. The quality of amethyst is quite unique, depending on where it was obtained. Amethyst that are found in the United States are larger compared to those found in Africa. However, the latter has higher saturation when it comes to their colors.

Amethysts with the highest saturation are those found in Australia. There are also amethyst found in Brazil that are usually large and have different hues and cuts.

Emerald - Emeralds are mostly found in Mexico. Two main sources are the mines in Guerrero and Vera Cruz. Emeralds found there have a tendency toward lighter shades and are clearer than those found in other countries. The stones have lighter hues and the crystals are phantomed with a transparent interior and a saturated exterior.

Emeralds that are found in Guerrero are saturated dark green. They have a visible termination of their interior color saturation and exterior transparency. The highly saturated emeralds are the most elegant.

Sapphire - The most notable source of Sapphires are those found in Brazil from Minas Gerais, Bahia, Maraba and Rio Grande do Sul. Among those containing the best sapphires are the large pockets that are formed by volcanic material.

The sapphires that are produced here vary in their color saturation ranging from pale up to medium blue. Those that are navy blue are the sapphires that have the highest saturation.

Diamond - Africa is known to be a producer of diamonds, thus the inspiration of the recently released blood diamond. There are diamond deposits in Zambia and Namibia. The diamonds found in Africa can be as large as an egg and are outstandingly clear.

Jade - The United States has various gems. In Maine, North Carolina, Pennsylvania, Montana and Colorado, the most popular stone is the Jade. The color is from the medium saturation. It may be smoky or translucent, depending on where it was obtained.

Jade from Maine and North Carolina are usually dark while those found in Montana or Colorado have a green tint.

Now, the next question, how the jewelry is made. Diamonds, emeralds, sapphires, amethysts, and jade are only a handful of precious gemstones out there. Some of them are very valuable because of their rare appearance.

How are these gemstones formed? Well, they are formed underneath the Earth. The process involved varies in each gem stone. The stones react with the minerals, specifically water. This is how they are dissolved. When the solution evaporates and cools down, these minerals are formed.

The water then mixes with the silica-rich rocks like sandstone. This produces the gemstones like amethyst, opals, agates, sapphires, jade and topaz to name a few. When the copper-rich rocks mix with the water, it bears the minerals like turquoise, malachite and azurite.

Emeralds and tourmalines are formed from rain water or the water from cooling bodies like magma that is mixed with the minerals and crystallized in cavities or open cracks. These spaces are filled with minerals which create the hydrothermal deposits needed in the formation of these gem stones.

There are also gemstones that are formed directly from the mantle. They consist of up to 70% of Earths total mass. They are usually made up of magnesium, silicon, iron, oxygen, silicate and aluminum compounds. The upper layer of the Earths mantle has a volume of the olivine which is quite common in the whole procedure.

Whenever you hear the word metamorphic it means the change of form of these rocks. Metamorphic gems are garnet, emerald, ruby, aquamarine, sapphire, onyx and zircon. They are formed over a long period of time because they wait for the rocks to be altered with such pressure and intense heat in order to interact with the other solutions.
About the Author
Allen Jesson writes for several sites that specialize in Antique Engagement Rings, and Vintage Engagement Rings. Providing you with high quality products and resources.
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