Flux Healed Or Infilled Ruby Gemstone & Information | Gemopedia by JTV | Gemopedia™

Flux Healed Or Infilled Ruby

Flux healed ruby has been heat treated with flux material that heals natural fissures within the stone. The process leaves flux residues, but only minor when compared to infilling or lead glass treatments.

Colors

Orangy Red, Red, Purplish Red

  • Flux-healed-or-infilled-ruby classification

    CommonName
    Flux Healed Or Infilled Ruby
    Species
    Corundum
    Variety
    Flux Healed Or Infilled Ruby
    Colors
    Orangy Red, Red, Purplish Red
    AlternateNames
    GemstoneGroups
    KeySeparations
    magnification, RI, birefringence, pleochroism
    ClassificationComments
    During heat enhancement, fluxes may be used to heal natural fissures. The process leaves glass residues, but minor when compared to infilling or lead glass treatments. The filling of surface-breaking cavities or fissures with colorless glass or fluxes during the heat treatment process. Improves clarity and color, and it may possibly add weight. Lead is not present in these materials.
  • Flux-healed-or-infilled-ruby chemistry & crystallography

    ChemicalName
    aluminum oxide
    ChemicalFormula
    Al2O3
    Synthesis
    CrystalSystem
    Trigonal
    ChemistryClassification
    Oxide
    Nature
    Natural
    Crystallinity
    Crystalline
    ChemistryComments
  • Flux-healed-or-infilled-ruby optical properties

    Transparency
    Transparent - Opaque
    Dispersion
    Strength: moderate fire Value: 0.018
    OpticalComments
    RefractiveIndex
    1.762-1.77
    Tolerance:(+0.009/-0.005)
    Birefringence
    0.008-0.01
    OpticCharacter
    Uniaxial
    OpticSign
    Negative
    PolariscopeReaction
    Doubly Refractive (DR)
    Fluorescence
    SWUV: Weak to strong red
    LWUV: Weak to moderate red
    CCFReaction
    red
    Pleochroism
    Dichroic, strong orangy red and purplish red
  • Flux-healed-or-infilled-ruby characteristic physical properties

    Hardness
    9
    CharacteristicComments
    Streak
    White
    SpecificGravity
    3.95-4.1 Typical:4
    Toughness
    Excellent
    Inclusions
    Surface reaching fractures and cavities of the stone are filled. One might be able to see flash colors in infilled stones. There is a difference in luster between ruby and glass areas of the stone. Stones will show evidence of heat treatment with damaged mineral inclusions. Sometimes stones have silk, rutile, boehmite, apatite, calcite or zircon crystals. Fingerprint and negative crystal inclusions. Hexagonal growth and color zoning. Heat treated stones will have fracture halos, discoid fractures or snowballs around crystal inclusions Silk will be broken and might show sintered areas especially around the girdle.
    Luster
    SubAdamantine
    Stability
    Very Good
    Fracture
    Conchoidal
    Cleavage
    None