This uncut crystal, which weighs 15,256 carats (3.1 kg or 6.7 lb), is nearly flawless and shows the classic natural aquamarine color. It is rare to find aquamarine crystals of this size and quality; most are cut into gems.
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Title: Aquamarine and Beryl Crystal
Location: Minas Gerais, Brazil, South America
Rights: This image was obtained from the Smithsonian Institution. The image or its contents may be protected by international copyright laws. http://www.si.edu/termsofuse