Libyan Desert Glass Gemstone & Information | Gemopedia by JTV | Gemopedia™

Libyan Desert Glass

This naturally forming glass is found in the Western Desert of Egypt. Although it was only discovered by the scientific community in 1932, we know of Libyan desert glass being used for ornamentation as far back as Ancient Egypt. Its origin is disputed, as some believe it is a tektite, like moldavite, formed from a meteor impact, while others believe it formed as a result of the aerial explosion of a meteorite that did not make impact.

Colors

Light Yellow To Greenish Yellow

  • Libyan-desert-glass classification

    CommonName
    Libyan Desert Glass
    Species
    Tektite
    Variety
    Colors
    Light Yellow To Greenish Yellow
    AlternateNames
    GemstoneGroups
    KeySeparations
    RI, SR nature, magnification and SG
    ClassificationComments
    Natural glass
  • Libyan-desert-glass chemistry & crystallography

    ChemicalName
    Silicon dioxide
    ChemicalFormula
    SiO2
    Synthesis
    CrystalSystem
    NA
    ChemistryClassification
    Mineraloid
    Nature
    Natural
    Crystallinity
    Non-Crystalline
    ChemistryComments
  • Libyan-desert-glass optical properties

    Transparency
    Semitransparent To Translucent
    Dispersion
    OpticalComments
    RefractiveIndex
    1.46
    Birefringence
    OpticCharacter
    NA
    OpticSign
    PolariscopeReaction
    Singly Refractive (SR) With ADR
    Fluorescence
    SWUV: Inert
    LWUV: Inert
    CCFReaction
    Pleochroism
    None
  • Libyan-desert-glass characteristic physical properties

    Hardness
    5-5.5
    CharacteristicComments
    Streak
    SpecificGravity
    Typical: 2.2
    Toughness
    Varies
    Inclusions
    Libyan desert glass might contain irregularly shaped gas bubbles and tiny rounded grains.
    Luster
    Vitreous
    Stability
    Fracture
    Conchoidal
    Cleavage
    None