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Cloud Mountain Turquoise. Cloud Mountain turquoise comes from a mine in the Hubei Province in central China that has been the most prolific mine in Asia. The Mohs hardness ranges from a 4 to 5.5. The qualities of turquoise that come from Hubei range from very soft material, needing to be treated to make it usable, to an attractive green spider ...
Oct 24, 2012 · The saturated raindrops and veins of turquoise from Hubei Province (figure 16) were characterized by the presence of both turquoise and fluorapatite. In addition to Al 2 O 3, P 2 O 5, CuO, FeO, and SiO 2, the raindrops and veins had other major chemical compositions of CaO and F differing from the substrates.
China. has been a significant source of turquoise for decades. One area of Zhushan County in Hubei Province has produced some attractive mate-rial (e.g., figure 1), but it has been overshadowed by more productive turquoise deposits in nearby Yun County (Tu, 2000). Chinese turquoise is also known from the city of Ma’anshan in Anhui Province ...
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Jul 14, 2017 · One big new about the current state of Chinese turquoise (specificly Hubei turquoise) is the government enforced to close down mining operation this month. I think this time is for real. All the newly mined Hubei turquoise in these few years are come from unofficial mining (stealing) and the local government decided to close them down completely.
Hubei: Chinese Turquoise American Turquoise is usually defined by where it is mined, such as Kingman or Sleeping Beauty. Hubei Turquoise has historically been referred to as simply “Chinese Turquoise”, even though it comes from many different locations. For over 2000 years Turquoise has been mined in China and is used in many carvings and works of art dating back to the earliest dynasties ...
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Nov 15, 2023 · For every 100 pounds (45 kilograms) of turquoise mined, only about 25 pounds (11 kilograms), or 25 percent, are considered jewelry quality, and of the 25 pounds, only about 1 pound (0.4 kilograms) is considered high-grade or gem quality. "It's not uncommon for this grade of turquoise to sell between $40-$200 per carat.
Jul 9, 2021 · Zhushan County in China’s Hubei Province is the world’s most abundant source of commercial gem-grade turquoise (F. Xu, “Study on turquoise in Shiyan City, Hubei Province,” Shanghai Art & Crafts, No. 3, 2017, pp. 30–32). It produces turquoise with special patterns, including “raindrop,” “Tang tricolor,” “growth layer ...
