Bleached And Impregnated Jade Gemstone & Information | Gemopedia by JTV | Gemopedia™

Bleached And Impregnated Jade

Jade is often impregnated with wax to disguise fractures and improve its polish appearance. On other occasions, it may be dyed or heated to produce or improve color.

Colors

Almost Any Color

  • Bleached-and-impregnated-jade classification

    CommonName
    Bleached And Impregnated Jade
    Species
    Jadeite
    Variety
    Colors
    Almost Any Color
    AlternateNames
    Type-B Jadeite, Type-B Jade
    GemstoneGroups
    KeySeparations
    Appearance, RI, spectrum, SG and magnification.
    ClassificationComments
  • Bleached-and-impregnated-jade chemistry & crystallography

    ChemicalName
    sodium aluminum silicate
    ChemicalFormula
    NaAlSi2O6
    Synthesis
    CrystalSystem
    Monoclinic
    ChemistryClassification
    Silicate
    Nature
    Natural
    Crystallinity
    Polycrystalline
    ChemistryComments
  • Bleached-and-impregnated-jade optical properties

    Transparency
    Semitransparent - Opaque
    Dispersion
    OpticalComments
    RefractiveIndex
    1.666-1.68
    Tolerance:(+0.008/-0.008)
    Birefringence
    OpticCharacter
    OpticSign
    PolariscopeReaction
    Aggregate (AGG)
    Fluorescence
    SWUV: Variable
    LWUV: Variable
    CCFReaction
    Pleochroism
    None
  • Bleached-and-impregnated-jade characteristic physical properties

    Hardness
    6.5-7
    CharacteristicComments
    Streak
    SpecificGravity
    3.25-3.4 Typical:3.34
    Toughness
    Excellent
    Inclusions
    Type B jadeite has been bleached in acid to remove staining and then it has been impregnated with wax or polymers. It will show etch boundaries between the individual crystal grains. Advanced lab testing is usually required to detect polymer impregnation.
    Luster
    Vitreous
    Stability
    Good
    Fracture
    Splintery, Granular
    Cleavage
    None