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Turquoise is an opaque, blue-to-green mineral that is a hydrous phosphate of copper and aluminium, with the chemical formula Cu Al 6( PO 4)4( OH)8·4 H 2 O. It is rare and valuable in finer grades and has been prized as a gemstone for millennia due to its hue.
- Turquoise (Color)
Turquoise (/ ˈ t ɜːr k (w) ɔɪ z / TUR-k(w)oyz) is a cyan...
- Bisbee Blue
Bisbee turquoise commonly has a hard chocolate brown colored...
- Robin Egg Blue
Robin egg blue, also called eggshell blue or robin's-egg...
- Hubei
Hubei is well known for its mines of fine turquoise and...
- Turquoise (Color)
Oct 24, 2012 · Three representative specimens of raindrop turquoise were collected from the Hubei market, chosen for the color of the raindrops and the presence of veins. Local gem dealers informed the authors that the raindrop turquoise was mined in Zhushan.
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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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May 16, 2024 · The history of turquoise mining in Hubei dates back centuries, with evidence of turquoise trade and utilization found in ancient Chinese artifacts and jewelry. Hubei turquoise has long been prized by Chinese artisans for its vibrant colors and spiritual significance.
Turquoise from Zhushan County, Hubei Province, China. A relatively new source of gem-quality turquoise is hosted within slates in Zhushan County of China’s Hubei Province. Rough and polished samples were studied using standard gemological methods, as well as FTIR and UV-Vis-NIR spectroscopy.
Mar 16, 2024 · As the demand for high-quality Hubei turquoise continues to grow, its rarity further enhances its worth, making it a coveted possession among collectors and gemstone enthusiasts. Hubei turquoise is renowned for its exceptional quality, showcasing a vibrant blue color, intricate matrix patterns, and a hardness that makes it suitable for jewelry ...
