Color Change Glass Gemstone & Information | Gemopedia by JTV | Gemopedia™

Color Change Glass

This man-made jewel is unique in that is displays the optical phenomenon of color change. Although this is not a natural phenomenon, it is an affordable alternative to rare and expensive color change gems, such as alexandrite. You can observe color change in this jewel by viewing it interchangeably in natural and incandescent light.

Colors

Green To Pink, Blue To Lavender

  • Color-change-glass classification

    CommonName
    Color Change Glass
    Species
    Glass
    Variety
    Zandrite
    Colors
    Green To Pink, Blue To Lavender
    AlternateNames
    Zandrite
    GemstoneGroups
    KeySeparations
    RI, color change, magnification and warm to touch
    ClassificationComments
    Zandrite RI typically 1.532
  • Color-change-glass chemistry & crystallography

    ChemicalName
    Silica
    ChemicalFormula
    Synthesis
    CrystalSystem
    NA
    ChemistryClassification
    Nature
    Simulant
    Crystallinity
    Amorphous
    ChemistryComments
  • Color-change-glass optical properties

    Transparency
    Transparent
    Dispersion
    OpticalComments
    RefractiveIndex
    1.47-1.7
    Tolerance:can go OTL
    Birefringence
    OpticCharacter
    NA
    OpticSign
    NA
    PolariscopeReaction
    Singly Refractive (SR) With ADR
    Fluorescence
    SWUV:
    LWUV:
    CCFReaction
    Pleochroism
    None
  • Color-change-glass characteristic physical properties

    Hardness
    5-6
    CharacteristicComments
    Streak
    SpecificGravity
    2.3-4.5
    Toughness
    Poor
    Inclusions
    Color change glass can have mold marks, concave facets, rounded facet edges and display the orange peel effect. Glass stones often have gas bubbles, flow lines and they might show cavities on the surface.
    Luster
    Vitreous
    Stability
    Fracture
    Conchoidal
    Cleavage
    None