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Amethyst Quality Factors - GIA Today, because of its availability and affordability, amethyst is used in mass-market jewelry as well as custom designer pieces This makes amethyst one of the world’s most popular colored gems and the most commercially important gem-quality quartz variety
Amethyst History and Lore - GIA Because of its wine-like color, early Greek legends associated amethyst with Dionysus, the god of wine and pleasure The Romans called him Bacchus Other legends reflected beliefs that amethyst kept its wearer clear-headed and quick-witted in battle and in business affairs
February Birthstone | Amethyst Birthstone Source Meaning | GIA Where is Amethyst Found? 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
Amethyst Mining in Brazil This article describes current mining of gem amethyst in three of the most important producing areas-Maraba (which currently is producing the most amethyst in Brazil), Pau dArco (which produces some of the finest material), and Rio Grande do Sul (which has the longest sustained production)
Amethyst Care and Cleaning Guide - GIA Common substances like sand and dust are composed mostly of quartz, the mineral species that includes the purple variety amethyst 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
Amethyst - Gemological Institute of America 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
アメシストの宝石 | アメシストストーン - GIA Amethyst from Boudi, Morocco Fabrizio Troilo, Abdelghani El Harfi, Salahaddine Mouaddib, Erica Bittarello, and Emanuele Costa , 4 30, 2015 英語で詳細を読む
Amethyst Gemstone | Amethyst Stone - GIA Amethyst Gemstone is the purple variety of the Quartz mineral Amethyst’s purple color can range from a light lilac to a deep, intense royal purple, and from brownish to vivid
Amethyst Description - GIA Amethyst is the purple variety of the quartz mineral species 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
Amethyst from Four Peaks, Arizona - GIA The Four Peaks mine in Maricopa County, Arizona, has sporadically produced fine-quality amethyst since the early 1900s, and it continues to supply commercial quantities of amethyst for the jewelry industry (figure 17)