![]() ![]() ![]() The Egyptian Pharaohs treasured this stone. It was also known as a symbol of affluence in many ancient cultures. It was considered to be a sacred stone by the ancients protective against all manners of evil and ill health. There are some contemporary designers who actively seek avocado and lime green turquoise. The gem is among the earliest protection amulets used by men. Generally speaking, turquoise with a green to greenish blue color is less desirable than turquoise with a pure blue hue, but it depends on personal preference. The traditional source for this color is the Nishapur district of Iran, so you’ll also hear it described as “Persian blue,” whether or not it was actually mined in Iran. The most-prized turquoise color is an even, intense, medium blue, sometimes referred to as robin’s egg blue or sky blue in the trade. Typically, turquoise is judged on three basic quality factors-color, texture, and the presence or absence of matrix. Each mine has different quality grades of turquoise: a) Stabilized. The color can vary from white to sky blue and green. The natural brown-black matrix in some turquoise gives the jewelry stones a unique character. Even high quality turquoise is a very soft gemstone, only slightly harder than ordinary glass used in windows. The name turquoise comes from an old French word for Turkish as the gem entered Europe through Turkey. Gübelin collection.įine-quality turquoise is sought after around the world by designers of unusual jewelry pieces. The mineral is quite common though gem quality turquoise is quite rare. The even blue color of the cabochon on the right would be called “Persian blue” in the trade. The green turquoise cabochon, from an American mine, might become part of a designer’s unique jewelry piece. There are some contemporary designers who actively seek avocado and lime green turquoise.Comprehensive CAD/CAM For Jewelry Certificate This treatment is only detectable through spectroscopy. The traditional source for this color is the Nishapur district of Iran, so you’ll also hear it described as “Persian blue,” whether or not it was actually mined in Iran. In addition, the proprietary 'Zachery Treatment' involves soaking turquoise in a solution to reduce porosity and improve luster. During my first visit, in 2014, to the Florence mine in Cripple Creek, Colorado, mine manager Clint Cross and his wife, Louisa McKay, mined more than 200 pounds of gem-quality turquoise from a single pocketa. The most-prized turquoise color is an even, intense, medium blue, sometimes referred to as robin’s egg blue or sky blue in the trade. Clint Cross recently recovered this 20-inch-long, 46-pound nugget of solid turquoise at the Florence mine. Gübelin collection.įine-quality turquoise is sought after around the world by designers of unusual jewelry pieces. Comprehensive CAD/CAM For Jewelry Certificate ![]()
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