Moissanite (Synthetic) Gemstone & Information | Gemopedia by JTV | Gemopedia™
Synthetic moissanite is an incredibly durable gem. In fact, the ceramic version of synthetic moissanite, called synthetic silicon carbide, is so hard and tough that it is used for body armor and mirrors in orbiting space telescopes! Fortunately, it also makes a gorgeous gem. Synthetic moissanite has a higher dispersion value (fire) than diamond, making it an impressive jewel. Each lab created gem is faceted by a skilled cutter to maximize its brilliance and enhance its exceptional fire. Second in hardness only to diamond, it is extremely resistant to scratching, abrasion, breaking and chipping.
Near Colorless To Light Yellow, Green, Gray, Possibly Greenish Tint
Moissanite-synthetic classificationCommonNameMoissanite (Synthetic)SpeciesMoissaniteVarietyColorsNear Colorless To Light Yellow, Green, Gray, Possibly Greenish TintAlternateNamesSynthetic Silicon Carbide, CarborundumGemstoneGroupsKeySeparationsExtreme fire, OTL RI reading, strong doubling through crown or pavilion facets and might have green tint.ClassificationCommentsThe natural equivalent of moissanite is rare and found as inclusions in other materials. In ceramic form the material is known as the abrasive carborundum.
Moissanite-synthetic chemistry & crystallographyChemicalNamesilicon carbideChemicalFormulaSiCSynthesisflux growthCrystalSystemHexagonalChemistryClassificationNatureSyntheticCrystallinityCrystallineChemistryComments
Moissanite-synthetic optical propertiesTransparencyTransparentDispersionStrength: extreme fire Value: 0.104OpticalCommentsRefractiveIndexOver the Limit 2.648-2.691Birefringence0.043OpticCharacterUniaxialOpticSignPositivePolariscopeReactionDoubly Refractive (DR)FluorescenceSWUV: Inert to moderate orange or blue
LWUV: Inert to weak orange or blueCCFReactionPleochroismNone
Moissanite-synthetic characteristic physical propertiesHardness9.2CharacteristicCommentsStreakGreenish GraySpecificGravity3.17-3.24 Typical:3.22ToughnessInclusionsSynthetic moissanite might contain white or reflective needles, tube like or plate like inclusions, channels and negative crystals.LusterAdamantineStabilityFractureConchoidalCleavageNone