Moissanite originally referred to a rare mineral discovered by Henri Moissan having a chemical formula SiC and various crystalline polymorphs. Earlier, this material, has been synthesized in the laboratory and named silicon carbide. Background Mineral moissanite was discovered by Henri Moissan while examining rock samples from a meteor crater located in Canyon Diablo, Arizona in 1893. At first, he mistakenly identified the crystals as diamonds, but in 1904 he identified the crystals as silico… (More on Moissanite)