Yellow Gold Turquoise Jewellery Necklace Set.

Yellow Gold Turquoise Jewellery Necklace Set.

By Mannan.

The distinctive silver jewellery produced by the Navajo and other Southwestern Native American tribes today is a rather modern development, thought to date from circa 1880 as a result of European influences.

Turquoise Silver Jewellery Old Fashion Necklace.

Turquoise Silver Jewellery Old Fashion Necklace.

By Mannan.

 Like the Aztecs, the Pueblo, Navajo and Apache tribes cherished turquoise for its amuletic use; the latter tribe believe the stone to afford the archer dead aim. 

Stylish Your Birth Stone Jewellery Turquoise Necklace.

Stylish Your Birth Stone Jewellery Turquoise Necklace.

By Mannan.

Other notable localities include: Afghanistan; Australia (Victoria and Queensland); north India; northern Chile (Chuquicamata); Cornwall; Saxony; Silesia; and Turkestan.

Trade in turquoise crafts, such as this freeform pendant dating from 1000–1040, is believed to have brought the Ancestral Puebloans of the Chaco Canyon great wealth.

Moche turquoise nose ornament. Larco Museum Collection, Lima, Peru

Backswords, inlaid with turquoise. Russia, 17th century.

Turquoise mosaic mask of Xiuhtecuhtli, the Aztec god of fire.

The iconic gold burial mask of Tutankhamun, inlaid with turquoise, lapis lazuli, carnelian and coloured glass.

Women Fashion Gold Jewellery Turquoise Necklace.

Women Fashion Gold Jewellery Turquoise Necklace.     

By Stone.

Additionally, Marco Polo reported turquoise found in present-day Sichuan. Most Chinese material is exported, but a few carvings worked in a manner similar to jade exist. In Tibet, gem-quality deposits purportedly exist in the mountains of Derge and Nagari-Khorsum in the east and west of the region respectively.

Turquoise Old fashion Jewellery Necklace Earring Bracelet.

Turquoise Old fashion Jewellery Necklace Earring Bracelet.

By Stone.

China has been a minor source of turquoise for 3,000 years or more. Gem-quality material, in the form of compact nodules, is found in the fractured, silicified limestone of Yunxian and Zhushan, Hubei province.

Bast Choice Women Turquoise Jewellery Necklace Ring.

Bast Choice Women Turquoise Jewellery Necklace Ring.

By Stone.

Other sources

Turquoise prehistoric artefacts (beads) are known since the fifth millennium BCE from sites in the Eastern Rhodopes in Bulgaria - the source for the raw material is possibly related to the nearby Spahievo Ph-Zn ore field.

Turquoise Silver Fashion Jewellery Bracelet Necklace.

Turquoise Silver Fashion Jewellery Bracelet Necklace.

By Stone.

In an attempt to recoup profits and meet demand, some American turquoise is treated or enhanced to a certain degree. These treatments include innocuous waxing and more controversial procedures, such as dyeing and impregnation (see Treatments).

Turquoise Pearl Fashion Jewellery Necklace.

Turquoise Pearl Fashion Jewellery Necklace.

By Stone.

 While a number of the Nevada deposits were first worked by Native Americans, the total Nevada turquoise production since the 1870s has been estimated at more than 600 tons, including nearly 400 tons from the Carico Lake mine.

Turquoise Birth Stone Fashion Jewellery Necklace Earring.

Turquoise Birth Stone Fashion Jewellery Necklace Earring.

By Stone.

Some of the green to green yellow shades may actually be variscite or faustite, which are secondary phosphate minerals similar in appearance to turquoise. A significant portion of the Nevada material is also noted for its often attractive brown or black limonite veining, producing what is called "spiderweb matrix".

Turquoise Fashion Gold Jewellery Necklace Earring.

Turquoise Fashion Gold Jewellery Necklace Earring.

By Stone.

Nevada turquoise is found as nuggets, fracture fillings and in breccias as the cement filling interstices between fragments. Because of the geology of the Nevada deposits, a majority of the material produced is hard and dense, being of sufficient quality that no treatment or enhancement is required. While nearly every county in the state has yielded some turquoise, the chief producers are in Lander and Esmeralda counties.

Turquoise Diamond String Necklace In Women.

Turquoise Diamond String Necklace In Women.

By Stone.

The Phelps Dodge Lavender Pit mine at Bisbee ceased operations in 1974 and never had a turquoise contractor. All Bisbee turquoise was "lunch pail" mined. It came out of the copper ore mine in miners' lunch pails. Morenci and Turquoise Peak are either inactive or depleted.

Turquoise Gold Jewellery Necklace Earring.

Turquoise Gold Jewellery Necklace Earring.

By Stone.

Prior to the 1920s, the state was the country's largest producer; it is more or less exhausted today. Only one mine in California, located at Apache Canyon, operates at a commercial capacity today.