Turquoise Gold Jewellery Locket.

Turquoise Gold Jewellery Locket.

By Mannan.

The Ancestral Puebloans (Anasazi) of the Chaco Canyon and surrounding region are believed to have prospered greatly from their production and trading of turquoise objects. 

Turquoise Old Design Jewellery Locket Earring.

Turquoise Old Design Jewellery Locket Earring.

By Mannan.

The Aztecs inlaid turquoise, together with gold, quartz, malachite, jet, jade, coral, and shells, into provocative (and presumably ceremonial) mosaic objects such as masks (some with a human skull as their base), knives, and shields. Natural resins, bitumen and wax were used to bond the turquoise to the objects' base material; this was usually wood, but bone and shell were also used.

Women Fashion Silver Jewellery Turquoise Locket.

Women Fashion Silver Jewellery Turquoise Locket.

By Stone.

The crystals, forming a druse over the mother rock, are very small; 1 mm (0.04 in) is considered large. Until the 1980s Virginia was widely thought to be the only source of distinct crystals; there are now at least 27 other localities.[citation needed]

Gold Chain Locket Turquoise Jewellery Fashion.

Gold Chain Locket Turquoise Jewellery Fashion. 

By Stone.

 Nevada has produced a wide diversity of colours and mixes of different matrix patterns, with turquoise from Nevada coming in various shades of blue, blue-green, and green. Some of this unusually coloured turquoise may contain significant zinc and iron, which is the cause of the beautiful bright green to yellow-green shades.

Gold Jewellery Turquoise Locket Chain.

Gold Jewellery Turquoise Locket Chain.

By Stone.

 Most of the turquoise deposits in Nevada occur along a wide belt of tectonic activity that coincides with the state's zone of thrust faulting. It strikes about N15°E and extends from the northern part of Elko County, southward down to the California border southwest of Tonopah.

Turquoise Birth Stone Jewellery Locket Chain.

Turquoise Birth Stone Jewellery Locket Chain.

By Stone.

Nevada is the country's other major producer, with more than 120 mines which have yielded significant quantities of turquoise. Unlike elsewhere in the US, most Nevada mines have been worked primarily for their gem turquoise and very little has been recovered as a byproduct of other mining operations. 

Turquoise Gold Jewellery Fashion Locket Chain.

Turquoise Gold Jewellery Fashion Locket Chain.

By Stone.

New Mexico (Eddy, Grant, Otero, Santa Fe counties) and Nevada (Clark, Elko, Esmeralda County, Eureka, Lander, Mineral County and Nye counties) are (or were) especially rich.