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Emerald is a gemstone and a variety of the mineral beryl (Be 3 Al 2 (SiO 3) 6) colored green by trace amounts of chromium or sometimes vanadium. Beryl has a hardness of 7.5–8 on the Mohs scale. Most emeralds have many inclusions, so their toughness (resistance to breakage) is classified as generally poor. Emerald is a cyclosilicate.
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Emerald is the green to greenish blue variety of the mineral Beryl. Top fine quality Emerald Gems are even more valuable than diamonds.
Emerald is the green variety of the mineral beryl and birthstone for the month of May. It has been the world's most popular green gemstone for over 5000 years.
Há 4 dias · Seeing Green: All About Emeralds. Emeralds are formed when chromium, vanadium, and iron are present in the mineral beryl. The varying presence of these three elements gives emerald its range of color. Chromium and vanadium make an intense green color. Iron gives the stone a bluish tint.
Há 3 dias · Emerald is the green to bluish green variety of beryl, a mineral species that also includes aquamarine as well as beryls in other colors. Gem experts differ on the degree of green that makes one stone an emerald and another stone a less-expensive green beryl.
11 de abr. de 2024 · Emerald, grass-green variety of beryl (q.v.) that is highly valued as a gemstone. The name comes indirectly from the Greek smaragdos, a name that seems to have been given to a number of stones having little in common except a green colour; Pliny’s smaragdus undoubtedly included several distinct.
1 de mai. de 2024 · Emerald is, simply put, the most famous green gemstone in the world. It holds an allure that has captivated people for thousands of years, and inspires generation after generation of gemstone enthusiasts.
