Moissanite (Synthetic) Gemstone & Information | Gemopedia by JTV | Gemopedia™

Moissanite (Synthetic)

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.

Colors

Near Colorless To Light Yellow, Green, Gray, Possibly Greenish Tint

  • Moissanite-synthetic classification

    CommonName
    Moissanite (Synthetic)
    Species
    Moissanite
    Variety
    Colors
    Near Colorless To Light Yellow, Green, Gray, Possibly Greenish Tint
    AlternateNames
    Synthetic Silicon Carbide, Carborundum
    GemstoneGroups
    KeySeparations
    Extreme fire, OTL RI reading, strong doubling through crown or pavilion facets and might have green tint.
    ClassificationComments
    The 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 & crystallography

    ChemicalName
    silicon carbide
    ChemicalFormula
    SiC
    Synthesis
    flux growth
    CrystalSystem
    Hexagonal
    ChemistryClassification
    Nature
    Synthetic
    Crystallinity
    Crystalline
    ChemistryComments
  • Moissanite-synthetic optical properties

    Transparency
    Transparent
    Dispersion
    Strength: extreme fire Value: 0.104
    OpticalComments
    RefractiveIndex
    Over the Limit 2.648-2.691
    Birefringence
    0.043
    OpticCharacter
    Uniaxial
    OpticSign
    Positive
    PolariscopeReaction
    Doubly Refractive (DR)
    Fluorescence
    SWUV: Inert to moderate orange or blue
    LWUV: Inert to weak orange or blue
    CCFReaction
    Pleochroism
    None
  • Moissanite-synthetic characteristic physical properties

    Hardness
    9.2
    CharacteristicComments
    Streak
    Greenish Gray
    SpecificGravity
    3.17-3.24 Typical:3.22
    Toughness
    Inclusions
    Synthetic moissanite might contain white or reflective needles, tube like or plate like inclusions, channels and negative crystals.
    Luster
    Adamantine
    Stability
    Fracture
    Conchoidal
    Cleavage
    None