Is Emerald a Mineral?
Introduction. Emerald Is One of the Gem Varieties of the Mineral Beryl. .. . Gems Generally Get Their Colour Because of Certain Trace Metals or Impurities...
Introduction. Emerald is one of the gem varieties of the mineral beryl. ... Gems generally get their colour because of certain trace metals or impurities contained in the mineral, and in the case of emeralds, they contain traces of chromium, or sometimes vanadium, giving them an intense green colour.
Is emerald a mineral or rock?
Emerald is a gemstone and a variety of the mineral beryl (Be3Al2(SiO3)6) colored green by trace amounts of chromium and/or sometimes vanadium. Beryl has a hardness of 7.5–8 on the Mohs scale. Most emeralds are highly included, so their toughness (resistance to breakage) is classified as generally poor.
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Why is emerald a mineral?
Beryl, the mineral of which emerald is a variety, has a chemical composition of Be3Al2(SiO3)6. When pure, beryl is colorless and known as "goshenite." Trace amounts of chromium or vanadium in the mineral cause it to develop a green color.
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