Aquamarine gemstone Weight: carats Origin: unknown Crystal structure: hexagonal Composition: beryllium aluminium silicate M

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Aquamarine gemstone Weight: carats Origin: unknown Crystal structure: hexagonal Composition: beryllium aluminium silicate Mohs hardness: In the 19th century, the preferred colour was sea green (the name means sea water). The most valued colours today are sky blue and dark blue. Almost all aquamarine on the market has been heat treated to enhance its colour. Aquamarine is dichroic, appearing blue or colourless from different angles. Birthstone for March Also used to commemorate the 16th and 19th wedding anniversaries

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Size: 4563px × 3042px
Location: United Kingdom
Photo credit: © Derek Anderson / Alamy / Afripics
License: Royalty Free
Model Released: No

Keywords: aluminium, aquamarine, beryllium, birthstone, blue, crystal, dark, dichroic, gem, gemstone, green, heat, hexagonal, march, mineral, sea, silicate, sky, treated