Mineral Moissanite was discovered by Henri Moissan while examining rock samples from a meteor crater located in Canyon Diablo, Arizona, in 1893. At first Scientists identified these crystals as diamonds, but in 1904 Henri Moissan identified the crystals as silicon carbide a rare and beautiful gem.
Moissanite, in its natural form, is very rare. It has only been discovered in a small variety of places from upper mantle rock to meteorites. Discoveries have shown that Moissanite occurs naturally as inclusions in diamonds, xenoliths, and ultramafic rocks such askimberlite and lamproite. They have also been identified in carbonaceous chondritemeteorites as presolar grains.
Analysis of SiC grains found in the Murchison meteorite has revealed anomalous isotopic ratios of carbon and silicon, indicating an origin from outside the solar system. 99% of these SiC grains originate around carbon-rich asymptotic giant branch stars. SiC is commonly found around these stars, as deduced from their infrared spectra.
Silicon carbide was first synthesized by Jöns Jacob Berzelius, who is best known for his discovery of silicon. Years later, Edward Goodrich Acheson produced viable minerals that could substitute for diamond as an abrasive and cutting material. This was possible, as Moissanite is one of the hardest substances known, with a hardness just below that of diamond.