Persian turquoise mines have a similar age. 8 48ct natural 16x12mm cabochon oval turquoise robins egg. Only one deposit is known to produce transparent to translucent crystals. Persian turquoise may also be called neyshabur turquoise named for the locality in which it s found. 537 ct 100 natural persian turquoise rough.
It is restricted to a mine riddled region in nishapur the 2 012 m 6 601 ft mountain peak of ali mersai near mashhad the capital of khorasan province iran. The legendary persian turquoise turquoise was one of the world s first gemstones. 6 carat robin egg blue december birthstone ornamental stone turkish stone persian blue color 2839. Chemically turquoise is a hydrated copper aluminum phosphate of aggregate cryptocrystalline structure. For centuries the most valuable turquoise came from iran but today deposits are also found in afghanistan argentina australia brazil china israel egypt mexico and tanzania.
The result of this sedimentary process is a porous semitranslucent to opaque compound of hydrated copper and aluminum phosphate. Specimens from this locale are rare and bring a hefty price from collectors. A protective stone used for thousands of years turquoise is the spiritual balm to a heart that s been chapped by old emotional wounds and chronic stress. According to persian legend the turquoise crystal stone was believed to bring good luck when it reflected the light of the new moon. Make offer 86 80 ct stabilized persian turquoise cabochon gemstone with pyrite 1ah 001.
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Dry and barren regions where acidic copper rich groundwater seeps downward and reacts with minerals that contain phosphorus and aluminum. Make offer 537 ct 100 natural persian turquoise rough. Persian turquoise was found in ancient graves in turkistan and in graves throughout the caucasus in the 1st to 3rd century a d. Turquoise cabs oval 11x9mm approx. Persian turquoise from iran this deposit is blue naturally and turns green when heated due to dehydration.The world s oldest gem mines were developed before the times of ancient egypt in the southern part of the sinai peninsula around 6000 bc. Turquoise is a non vitreous stone which differs in shade from blue green and blue green depending on its origin. About turquoise turquoise is found in only a few places on earth. The mines are nestled near the city of nishabur. The world s oldest gem mines were developed before the times of ancient egypt in the southern part of the sinai peninsula around 6000 bc.
The mines are nestled near the city of nishabur. Dry and barren regions where acidic copper rich groundwater seeps downward and reacts with minerals that contain phosphorus and aluminum. The result of this sedimentary process is a porous semitranslucent to opaque compound of hydrated copper and aluminum phosphate. It is restricted to a mine riddled region in nishapur the 2 012 m 6 601 ft mountain peak of ali mersai near mashhad the capital of khorasan province iran. Persian turquoise mines have a similar age.
