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Among the gems are many varieties of jewels : it is certainly one of the most recognizable emerald. Its bright green color is so characteristic as to be indicative of the same hue , called emerald green. This gemstone is available in several types , which differ depending on their training and the place of origin(Fashion bracelets) . In any case it is a variety of beryl , a mineral that can take on different colors and where the emerald is the most beautiful and precious example . The green color that everyone loves is due to traces of chromium : a geological explanation for what is a rare and beautiful gemstone .
The most famous emeralds and precious today are those from Colombia, although the first in history came from ancient Egypt , particularly in the region dell'Etbai , near the Red But today those fields are no longer exploited but then there is found the famous emeralds of Cleopatra.
Mounted on a splendid jewels(cuff earrings) , that have adorned the crowned heads from around the world , today you can still see the emeralds unique , such as the world's largest .
As with other gemstones, green emeralds are also classified according to specific characteristics : color, cut , integrity and transparency . In this case, the color is definitely the most important characteristics that differentiates the most precious stones from less valuable .
The color must be pure and have the right degree of hue, saturation and brightness : only the darker stones , where the predominant green emeralds may be considered , even if the range of shades of green may vary from lighter ones to those darker.
A feature that allows to distinguish between the different varieties of diamonds is the composition of the prisms , usually hexagonal elongated crystals . Another distinctive feature is the presence of intrusion : Unlike diamonds(hello kitty necklace), emeralds can be in the visible to the naked eye which allows us to recognize a true emerald from imitation.
Normally are cut in a rectangular shape, as cut , but they can also be cut with brilliant-cut , round and oval .
However, it is the shape of the crystals representing the variety of emerald : the best known are those from Colombia, along the Cordillera of Bogota , which since 1500 has supplied almost all of the emeralds on the market .
Here are the emeralds from Muzo and Chivor , but also Brazil , in the states of Goias and Minas Gerais , has its own type of emeralds from the typical elongated "tube" .
In Zimbabwe there are varieties elongated or needle , while in South Africa have irregular shapes and rounded edges. In Europe, the area was also known dell'Habachtal in Austria, but deposits were found and exploited in Russia.
To date, the states of South America with Colombia and Brasili in front of everyone to lord it in the extraction of the green stones .
