Benitoite – $4,000 per carat

 

Benitoite (Credit: jtv.com)

Benitoite (Credit: jtv.com)

Benitoite (BaTiSi3O9) is a bright blue gemstone made up of barium, titanium, and silica. Benitoite is formed during the late stage cooling of a hydrothermally altered serpentinite. This rare gemstone is found in San Benito County, California where it got its name. Benitoite will give off strong fluorescence and shines a bright blue color.

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