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. The color that we recognize as turquoise was named after this gemstone. The best color in turquoise is a solid deep turquoise blue hue. Pliny the elder referred to the mineral as callais from ancient greek κάλαϊς and the aztecs knew it as chalchihuitl.
It was used by ancient egypt rulers around 5500 bc. Malachite and chrysocolla can sometimes grow together in stones with turquoise as well. The name turquoise dates to 16th century and derived from old french word for turkish because it entered western europe through asia minor. Like most other opaque gems turquoise has been devalued by the introduction onto the market of treatments imitations and synthetics. Turquoise can also form in series with the minerals chalcosiderite and planerite.
The zinc analogue of turquoise faustite has an intense yellow green color and a density within the turquoise range. Greenish colors are less desirable and are not usually used as gemstones. Turquoise was one of the earliest gems to be used for personal adornment. The zinc analogue of turquoise faustite has an intense yellow green color and a density within the turquoise range. It was used by ancient egypt rulers around 5500 bc.
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Turquoise was one of the earliest gems to be used for personal adornment. The gemstone has been known by many names.
