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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 History and Lore - GIA It’s no wonder that fine amethyst adorns the fingers of bishops as well as the coronation regalia of British royalty Amethyst is the birthstone for February and one of the emblems of the twelve apostles
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 - Gemological Institute of America Amethyst is a gem with purple coloring that many people find very beautiful 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
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 from Newfoundland, Canada: Geology, Internal Features, and . . . The purpose of this study is to (1) describe the amethyst gemstones and mineralization at La Manche, (2) identify amethyst’s position in the paragenetic sequence of the veins, (3) characterize the mineral inclusions, (4) gain insights into formation temperature and hydrothermal fluid salinity by conducting fluid inclusion microthermometry on
GIA Gem Encyclopedia | Complete List Of Gemstones GIA’s Guide to Gemstones: 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
Amethyst from Four Peaks, Arizona - GIA Amethyst crys-tals from the Four Peaks mine display a typical morphology for ame-thyst, consisting mainly of rhombohedral faces Facetable material varies from light to dark purple, and generally only small portions of the crystals are suitable for faceting
Fall 2024 Gems Gemology Amethyst from Newfoundland, Canada . . . - GIA 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; McArthur et al , 1993; Yang et al , 2001; Kievlenko, 2003; Gilg et al , 2014)
February Birthstone | Amethyst Birthstone Source Meaning | GIA Amethyst, the February birthstone, is the purple variety of quartz It is said to prevent drunkenness and make you quick witted in business You once had to be rich to own this birthstone for February, but new finds have made it more affordable Learn more about this stunning birthstone and where it can be found