The international gem society igs has a list of businesses offering gemstone appraisal services. Only a few gemstones have a color that is so familiar. Many turquoise gemstones are greener than they are blue. Turquoise ˈ t ɜːr k ɔɪ z k w ɔɪ z is a blue green color based on the gem of the same name the word turquoise comes from the french for turkish as the gem was originally imported from turkey. Turquoise the beautiful sky colored gem is a popular gemstone found in silver jewelry.
The first recorded use of turquoise as a color name in english was in 1573. Like most other opaque gems turquoise has been devalued by the introduction onto the market of treatments imitations and synthetics. Pliny the elder referred. Turquoise is a copper mineral with a bright blue to blue green color. The gemstone has been known by many names.
Turquoise is a real gem bargain. The x11 color named turquoise is displayed on the right. Precious stones range from almost green and teal to a very pale aqua color as in light aquamarines. Turquoise is a porous gemstone and is thus easily. The colour of different types of gemstones is so enormous that no exact term defines every individual tone.
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Pure blue turquoise is quite rare. Turquoise may occasionally also be mixed together with green malachite or chrysocolla causing blue and green mottled gemstones. Turquoise is found in dry climates in the rocks above copper deposits. Like many blue gemstones turquoise will typically have a noticeable touch of green. Turquoise is an opaque blue to green mineral that is a hydrated phosphate of copper and aluminium with the chemical formula cual6 po4 4 oh 8 4h2o.A gem color largely depends on its chemical composition and crystalline structure. Even the very highest grades of material are modestly priced compared to many other gems. The color is so familiar and so enjoyed that the word turquoise has become a commonly used word for a milky blue green color. In the range is even more noticeable as in turquoise chrysocolla and variscite which range between a very green hue to a darker blue hue. Gemstones by color.
Quality factors turquoise is judged on its color texture and the absence of matrix. Different gemstones contain element traces in varying amount which lend them a unique colour. In fact the color turquoise was named after the gemstone and not the other way around. Turquoise is colored by copper which creates some of the most vivid blues and greens in gems. Greenish colors are less desirable and are not usually used as gemstones.
As with all gem stones there is a great range of color in turquoise or aqua colored stones. Turquoise is one of the best known gemstones. The best color in turquoise is a solid deep turquoise blue hue. Coral kunzite malaya garnet morganite opal pearl rhodochrosite rhodolite garnet rose quartz smithsonite star rose quartz and tourmaline. As with all gem stones there is a great range of color in turquoise or aqua colored stones.
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Coral kunzite malaya garnet morganite opal pearl rhodochrosite rhodolite garnet rose quartz smithsonite star rose quartz and tourmaline. Quality factors turquoise is judged on its color texture and the absence of matrix. A gem color largely depends on its chemical composition and crystalline structure. Pure blue turquoise is quite rare. Turquoise is a real gem bargain.The best color in turquoise is a solid deep turquoise blue hue. The first recorded use of turquoise as a color name in english was in 1573. The international gem society igs has a list of businesses offering gemstone appraisal services.
