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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 ]
Red beryl, formerly known as bixbite and marketed as red emerald or scarlet emerald, is an extremely rare variety of beryl as well as one of the rarest minerals on Earth. [ 1 ] [ 2 ] : 19 The gem gets its red color from manganese ions embedded inside of beryllium aluminium cyclosilicate crystals. [ 1 ]
Emerald City: The Wizard of Oz: MGM: The Emerald City is the fictional capital city of the Land of Oz based on L. Frank Baum's series of Oz books. It was first described in The Wonderful Wizard of Oz. The city is sometimes called the City of Emeralds due to its extensively green architecture. Zion: The Matrix: Warner Brothers
Karst regions overlying limestone bedrock tend to have fewer visible above-ground sources (ponds and streams), as surface water easily drains downward through joints in the limestone. While draining, water and organic acid from the soil slowly (over thousands or millions of years) enlarges these cracks, dissolving the calcium carbonate and ...
The emerald ash borer (Agrilus planipennis), also known by the acronym EAB, is a green buprestid or jewel beetle native to north-eastern Asia that feeds on ash species (Fraxinus spp.). Females lay eggs in bark crevices on ash trees, and larvae feed underneath the bark of ash trees to emerge as adults in one to two years.
Emmerdale Farm was created when Kevin Laffan was asked to write a lunchtime farming serial for ITV, as the network was looking to expand its daytime programming after government restrictions on broadcasting hours were relaxed. He initially said no as his agent advised him that writing a soap would tarnish his reputation as a playwright, which ...
The Emerald Tablet, the Smaragdine Table, or the Tabula Smaragdina [a] is a compact and cryptic Hermetic text. [1] It was a highly regarded foundational text for many Islamic and European alchemists . [ 2 ]