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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. [2] Beryl has a hardness of 7.5–8 on the Mohs scale. [2] Most emeralds have many inclusions, [3] so their toughness (resistance to breakage) is classified as generally poor. Emerald is a cyclosilicate.
Learn about the history, value, and quality of emeralds, the green beryl gemstones that are among the traditional "Big Four" gems. Find out how color, clarity, origin, and treatment affect emerald prices and see stunning photos of emerald jewelry.
Learn about emerald, the bluish green to green variety of beryl, a mineral species that includes aquamarine. Find out about its history, lore, quality factors, treatments, synthetics, and more.
May 20, 2024 · Learn about the different types of emeralds, from Colombian to Brazilian, and how they vary in color, clarity and value. Find out which emeralds are natural and which are treated, and how to spot the cat's eye effect.
May 1, 2020 · Emerald is a green variety of Beryl, one of the most desirable and historical gemstones in the world. Learn about its origins, sources, color, inclusions, symbolism and famous pieces in this comprehensive article.
Sep 5, 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.
