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Moissanite (/ ˈ m ɔɪ s ə ˌ n aɪ t /) [5] is naturally occurring silicon carbide and its various crystalline polymorphs. It has the chemical formula SiC and is a rare mineral , discovered by the French chemist Henri Moissan in 1893.
Moissanite is superior to cubic zirconia in two ways: its hardness (8.5–9.25) and low SG (3.2). The former property results in facets that are sometimes as crisp as a diamond's, while the latter property makes simulated moissanite somewhat harder to spot when unset (although still disparate enough to detect).
As a gemstone used in jewelry, silicon carbide is called "synthetic moissanite" or just "moissanite" after the mineral name. Moissanite is similar to diamond in several important respects: it is transparent and hard (9–9.5 on the Mohs scale, compared to 10 for diamond), with a refractive index between 2.65 and 2.69 (compared to 2.42 for diamond).
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Charles & Colvard, Ltd., is a Research Triangle Park, North Carolina–based publicly traded company that distributes and manufactures jewelry.It was founded in 1995 by Charles Eric Hunter under the name C3 Inc., [4] and then run by his brother Jeff Hunter until 2000.
Here are the key races to watch next year: New Jersey governor. New Jersey has been seen as a heavily Democratic state, won by President Biden by 16 points in 2020.
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