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aquamarine(ăk'wəmərēn`, äk'–) [Lat.,=seawater], transparent berylberyl
, mineral, a silicate of beryllium and aluminum, Be3Al2Si6O18, extremely hard, occurring in hexagonal crystals that may be of enormous size and are usually white, yellow, green, blue, or colorless.
..... Click the link for more information. with a blue or bluish-green color. Sources of the gems include Brazil, Siberia, the Union of Myanmar, Madagascar, and parts of the United States. Oriental aquamarine is a transparent crystalline corundum with a bluish tinge. The emerald is similar in composition, differing only in color.
a variety of the mineral beryl that appears as light blue, light bluish green, greenish blue, and grayish light blue transparent crystals. A semiprecious stone, aquamarine is used in jewelry. The most expensive aquamarine is obtained from deposits of pegmatite and greisen found in the USSR, Brazil, the USA, the island of Madagascar, and India.