Purple quartz a dyed quartz stone the opacity and waxy shine of the stone in some ways resembles jade. A specific shade of semi transparent emerald green known as imperial jade is the most sought after in the world.
Though it s available in a variety of colors including red yellow and black green is most common with the stone.
Purple semi precious stone. In the uk it is found only at blue john cavern and treak cliff cavern at castleton in derbyshire. Many of the gems listed below have color descriptions. Precious stones are diamonds rubies emeralds and sapphires.
During the 19th century it was mined for its ornamental value and mining continues on a small scale. Jadeite is the purest rarest and most vivid gemstone in the jade family. Amethyst is a purple variety of quartz which is silica or silicon dioxide with a chemical formula of sio 2.
While most popular in red spinel also occurs as purple stones. Pegged at 7 5 to 8 in the mohs scale the purple crystal is quite hard and durable making the purple gem very suitable for jewelry. In classifying the most popular purple gemstones the amethyst is number one.
Blue john also known as derbyshire spar is a semi precious mineral a form of fluorite with bands of a purple blue or yellowish colour. The term precious stone versus semi precious stone is a commercial term that simply isn t always applicable they are terms that exist solely in the west and were created as a marketing tool by the people who were looking to sell precious stones. In ancient times the amethyst was regarded as a precious gemstone higher than others.
Charoite view profile with light to medium dark purple colors and swirling patterns charoite is one of the few gemstones so distinctive that a gemologist can make a sight identification with confidence. Purple quartz rocks and gems quartz stone semi precious gemstones crystal healing pear crystals jade beading mexican crazy lace a beautiful agate with lacy patterns. Glassy in clarity and luster this purple semi precious stone is pale in intensity and therefore appears lavender or lilac rather than actually purple.
Few cut specimens of this colorless brownish or purple stone exist. Some just have simple color names red purple etc. Those codes are gem color grades from the gemological institute of america gia color grading system.
Others also have codes with abbreviations and numbers such as slpr 5 5 see spinel for example. A wide variety of purple semi precious stone options are available to you such as gemstone crystal and metal. It was an equal par with rubies emeralds and diamonds.
It is moderately hard with a mohs scale hardness of around 7. The violet color comes from the irradiation of iron impurities in the matrix.
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