The gemstone has been known by many names. Turquoise may occasionally also be mixed together with green malachite or chrysocolla causing blue and green mottled gemstones.
Greenish colors are less desirable and are not usually used as gemstones.
Turquoise coloured gemstones. Many turquoise gemstones are greener than they are blue. Pure blue turquoise is quite rare. A gem color largely depends on its chemical composition and crystalline structure.
Turquoise is colored by copper which creates some of the most vivid blues and greens in gems. The best color in turquoise is a solid deep turquoise blue hue. As with all gem stones there is a great range of color in turquoise or aqua colored stones.
Gemstones with a pink hue include the following. In fact the color turquoise was named after the gemstone and not the other way around. Turquoise is a hydrous phosphate mineral of aluminium and copper.
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. Today the traditional december birthstone is favored by well known modern jewelry designers as well as aficionados of american southwestern and native american jewelry. Turquoise the beautiful sky colored gem is a popular gemstone found in silver jewelry.
Gemstones by color. It is rare and valuable in finer grades and has been prized as a gemstone and ornamental stone for thousands of years owing to its unique hue. 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. 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. Its chemical name is aluma phosphate and its color is most commonly blue.
The x11 color named turquoise is displayed on the right. Turquoise is one of the best known gemstones. Coral kunzite malaya garnet morganite opal pearl rhodochrosite rhodolite garnet rose quartz smithsonite star rose quartz and tourmaline.
Green means there is iron present in the stone while blue means there is copper present. Turquoise is a porous gemstone and is thus easily dyed. Like many blue gemstones turquoise will typically have a noticeable touch of green.
The colour of different types of gemstones is so enormous that no exact term defines every individual tone. Different gemstones contain element traces in varying amount which lend them a unique colour. There may be other turquoise stones that are green or blue in color.
Precious stones range from almost green and teal to a very pale aqua color as in light aquamarines. With striking sky blue to blue green colors turquoise has been prized by cultures all over the world for over 5 000 years. 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.
Quality factors turquoise is judged on its color texture and the absence of matrix. Pliny the elder referred.
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