Strontium Titanate Gemstone & Information | Gemopedia by JTV | Gemopedia™

Strontium Titanate

As its name implies, strontium titanate is an oxide combination of strontium and titanium that was originally created as a diamond simulant. However, strontium titanate gems are easy to distinguish from diamonds, as their high dispersion and considerably lower hardness are dead giveaways. For the most part, this jewel fell into obscurity when the hugely popular cubic zirconia (CZ) entered the market in the 1970's. While strontium titanate was originally believed to only be available via laboratory creation, it was discovered in natural form in the 1980's in Siberia and named tausonite in honor of a Russian geochemist. However, there was one problem with the crystals--they were SO small that they couldn't be cut into gems!

Colors

Mostly Colorless But Can Be Golden, Blue, Purple, Red, Orange, Brown

  • Strontium-titanate classification

    CommonName
    Strontium Titanate
    Species
    Strontium Titanate
    Variety
    Colors
    Mostly Colorless But Can Be Golden, Blue, Purple, Red, Orange, Brown
    AlternateNames
    Fabulite, Wellington, Diagem, Dynagem, Jewelite, Kenneth Lane Jewel, Lusitgem, Marvelite, Pauline Trigere, Rossini Jewel, Sorella, Starilian, Strontium, Testotitianate , Zenithite
    GemstoneGroups
    KeySeparations
    Poor surface polish, extreme fire, OTL RI reading, high heft and lack of doubling due to SR nature. Very little see through effect.
    ClassificationComments
    The natural form of SrTiO3 is Tausonite
  • Strontium-titanate chemistry & crystallography

    ChemicalName
    strontium titanium oxide
    ChemicalFormula
    SrTiO3
    Synthesis
    flame fusion
    CrystalSystem
    Cubic
    ChemistryClassification
    Oxide
    Nature
    Synthetic
    Crystallinity
    Crystalline
    ChemistryComments
  • Strontium-titanate optical properties

    Transparency
    Transparent
    Dispersion
    Strength: extreme fire Value: 0.19
    OpticalComments
    RefractiveIndex
    2.409-0
    Birefringence
    OpticCharacter
    NA
    OpticSign
    NA
    PolariscopeReaction
    Singly Refractive (SR)
    Fluorescence
    SWUV: Inert
    LWUV: Inert
    CCFReaction
    Pleochroism
    None
  • Strontium-titanate characteristic physical properties

    Hardness
    5-6
    CharacteristicComments
    Streak
    SpecificGravity
    5.11-5.15 Typical:5.13
    Toughness
    Fair
    Inclusions
    Strontium titanate sometimes contain small gas bubbles. Stones might show polishing marks or scratches due to low mohs hardness.
    Luster
    SubAdamantine
    Stability
    Fracture
    Conchoidal
    Cleavage
    None