In Gemological Institute of America (GIA). 1992īér-5. In ancient lore, Aquamarine was believed to be the treasure of mermaids and was used by sailors as a talisman of good luck, fearlessness, and protection. a greenish-blue stone used in jewelry: Fantastic diamonds, pearls, rubies, emeralds and aquamarines are insured for thousands of. It is calming, soothing, and cleansing, and inspires truth, trust, and letting go. The two gems will show different reactions due to their different colouring elements: iron in aquamarine and chromium in emerald. Aquamarine evokes the purity of crystalline waters and the exhilaration and relaxation of the sea. Gemmologists can use a small hand-held instrument called the Chelsea filter to help them distinguish between similar looking greenish aquamarines and pale green emeralds. In most cases the individual varieties are differentiated by the presence of small amounts of a chemical element that causes the particular colours associated with the different varieties. In gemmology, the varieties or members of a species, share a common chemical composition of atoms organized in identical repeating patterns. * In gemmology, as in nature, a species refers to a group with related members who share common features. The Schlumberger Bow, a 148.5-ct aquamarine, the Field Museum of Natural History, Chicago. A 638-ct aquamarine, the Natural History Museum of Los Angeles. Aqua is her nickname, given to her first by Raymond. These include the following: A flawless, 898-ct aquamarine, the Natural History Museum of London. Aquamarine is the main protagonist, and the main mermaid, in the film by the same name. More included and translucent crystals can be cut as cabochons. Other large and famous aquamarines are on display in museums around the world. In its rough, uncut state aquamarine is usually found as long hexagonally shaped prismatic crystals. When clean and transparent these crystals can produce large and inclusion-free cut gems. Gemmologists can use many different instruments to identify aquamarine including the microscope to observe typical inclusions especially long parallel growth tubes that resemble ‘rain’ within the gem. Fact sheetĭisplays moderate dichroism of pale blue and green It is resistant and stable with a hardness of 7.5 on the Moh’s scale and a vitreous lustre.Īquamarine and other beryls can occasionally show optical phenomena such as cat’s eye or star effects. Aquamarine, the birthstone of the month of March is, more often than not, considered as one of the most beautiful and the most sophisticated gemstones in the world. As with most beryls, aquamarine’s durability makes it a well-suited gem for use in jewellery.
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