benitoite


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benitoite

[bə′nēd·ə‚wīt]
(mineralogy)
BaTi(SiO3)3 A blue to violet barium-titanium silicate mineral; at one time it was cut and sold as sapphire.
References in periodicals archive ?
Other rarities are a "rainbow" calcite, which has the unique ability to separate and reflect light into its spectral colours, and the world's largest faceted benitoite gem, a stone the colour of blue sapphire but with the fire and reflective properties of diamond.
Amex: AZC; Toronto: AZC) has secured an extension until January 1, 2000 on its option to acquire the Benitoite Gem Mine in San Benito County, California.
Currently, the average wholesale price for benitoite is approximately US$1,000 per carat.
AZCO recently marked its entry into the coloured gemstone business when it acquired an option to purchase the Benitoite Gem mine in California.
is pleased to announce that it has acquired the exclusive option to explore, evaluate and purchase the Benitoite Gem mine in San Benito County, California.
William Rohtert, an economic geologist and graduate gemologist, to supervise the evaluation of the Benitoite Gem mine.
Benitoite has recently been featured as the lead article in "Gems & Gemology" (volume 33, number 3, page 166-187), the quarterly journal of the Gemological Institute of America.