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The Turquoise

The stone of the pharaohs

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Turquoise is a phosphate of hydrated copper and aluminum.
Its color can vary from sky blue to green. The most popular turquoises are those of azure blue color, with the least possible black veins (due to copper).
Turquoises can deteriorate with time and oxidation, they change color and become darker and greener. They are then called dead or extinct turquoises.

Bvlgari Neckless, Turquoises, Amethyst

Boucheron Ring, Circa 1980

A HISTORY THAT GOES BACK TO ANTIQUITY

The turquoise is known since ancient times.
Among the Egyptians, it adorned, with lapis lazuli and carnelian, the crowns and pectorals of the Pharaohs. In Persia it served as a bargaining chip and for the Aztecs it represented a piece of heaven fallen on the Earth.
Turquoise was imported in France with the Crusades. In the 13th century, the word “Turkoys” appeared in the French language. It was thought, at the time that, the stone came from Turkey, being in fact only a transition port for these stones that came from Iran.

18th century Brooch, Turquoises, diamonds, pearls

Cartier Ring, turquoises, diamonds, yellow gold, circa 1960

Cartier Brooch, Turquoises, lapis lazuli, diamonds

MINING

The Turquoises mines have been exploited for nearly 3000 years. The oldest mines are those of Iran near the city of Nishapur and Egypt in the Sinai region.
Today Iran remains the main producing country, nevertheless new mines have emerged. In Mexico and the western United States (Nevada, Arizona, Colorado, New Mexico, California …).
Turquoise is found in arid areas, near copper mines.

Parue and Brooch, signed Sterlé

TURQUOISES IN THE JEWELRY INDUSTRY

Turquoise is very popular, it is found on many jewels, often in silver and cheap, these stones having little value. On the other hand, very beautiful stones are also used for beautiful pieces made by the great jewelers.

 

Brooch (turquoises, lapis lazuli, diamonds), Earings (turquoises, diamonds), Ring (tourmaline, sapphires, turquoises, diamonds) Signed Van Cleef And Arpels

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