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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.
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).
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).
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.
WASHINGTON (Reuters) -A U.S. Justice Department watchdog report released on Thursday debunked claims by far-right conspiracy theorists who falsely alleged that FBI operatives were secretly ...
Buying Guide: All the Apple devices and accessories you need. Katelyn Mullen. Updated November 2, ... Each year, a new and improved version is released and this year's model, the iPhone 15 has ...
The number of childfree women is at a record high: 48 percent of women between the ages of 18 and 44 don’t have kids, according to 2014 Census numbers. The Huffington Post and YouGov asked 124 women why they choose to be childfree.
Related: How to Buy Eggs: What Do Organic, Cage-Free and Free-Range Labels Mean? 7. Seltzer Water. Calling all fizz fans! Seltzer, or sparkling water, is a healthy alternative that satisfies the ...
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