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Amethyst gemstone is the purple variety of the quartz mineral Amethyst, the purple variety of quartz colored by interstitial fe3+ (cohen, 1985), forms in a number of geological settings, but always at relatively low temperature (≤400°c) and shallow crustal depth (cohen, 1985 Amethyst’s purple color can range from a light lilac to a deep, intense royal purple, and from brownish to vivid.
Amethyst is the purple variety of the quartz mineral species So, while amethyst is a great gemstone for use in jewelry, it should be treated with the proper care to prevent scratching and other damage. It’s the gem that’s most commonly associated with the color purple, even though there are other purple gems such as sapphire and tanzanite.
It is the purple variety of the mineral quartz
It was as valuable as ruby and emerald until the 1800s when more amethyst was found in the country of brazil It is the most valuable quartz gem Today, many kinds of jewelry are made from amethyst Quartz can come in many other colors.
The romans called him bacchus Russia was the major source of amethyst until the 19th century, when large deposits were found in brazil Once as rare as ruby or emerald, amethyst was suddenly in abundance Today, the most important sources of amethyst are in africa and south america.
Gem encyclopedia gia’s gem encyclopedia is a virtual journey through the science and lore of gemstones from across the globe
Each precious stone page features additional detailed gemological information, a buyer’s guide, photos, videos & research. Common substances like sand and dust are composed mostly of quartz, the mineral species that includes the purple variety amethyst
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