The Dom Pedro Aquamarine is one of the largest mineral crystals found inside Earth’s rocks. Abigail Eisenstadt Dom Pedro aquamarine was cut from a 100-pound crystal that was mined in the late ...

Jeffrey Post, curator of the Smithsonian’s National Gem and Mineral Collection, says the size of the Dom Pedro Aquamarine is “unprecedented.” Donald E. Hurlbert/ NMNH, SI You start with the ...

The world's largest faceted aquamarine can be found at the Smithsonian Museum of Natural History. The Dom Pedro aquamarine weighs approximately 4.6 pounds and was cut from a 100-pound stone in the ...

Kirk Johnson, the new director of the Smithsonian National Museum of Natural History, gazes at the 10,363-carat Dom Pedro aquamarine. (Marvin Joseph/THE WASHINGTON POST) By Brian Vastag.

The resulting pools flood with the stream's natural, clear waters. That water then mixes with algae to create the distinctive ...

Aquamarine crystals have a pale blue color, which is not surprising given the name of the gemstone itself. This crystal tone is known for its healing and spiritual properties as well as its color.