Vegetable Ivory Gemstone & Information | Gemopedia by JTV | Gemopedia™

Vegetable Ivory

Also known as "tagua," vegetable ivory is the hard white inside of the seeds of certain nut palm trees. Named for its resemblance to elephant ivory, it is often carved for jewelry and ornaments as a renewable alternative to true ivory. Such use has been employed since the 1880's, with material often produced in the coastal rain forests of Ecuador and Peru.

Colors

White To Light Yellow, But Can Be Dyed Almost Any Color

  • Vegetable-ivory classification

    CommonName
    Vegetable Ivory
    Species
    Vegetable Ivory
    Variety
    Colors
    White To Light Yellow, But Can Be Dyed Almost Any Color
    AlternateNames
    Tagua Nut Or Corozo Nut
    GemstoneGroups
    KeySeparations
    Magnification
    ClassificationComments
    Vegetable ivory comes from the seeds of certain species of palm trees.
  • Vegetable-ivory chemistry & crystallography

    ChemicalName
    ChemicalFormula
    Synthesis
    CrystalSystem
    NA
    ChemistryClassification
    Organic
    Nature
    Natural
    Crystallinity
    Non-Crystalline
    ChemistryComments
  • Vegetable-ivory optical properties

    Transparency
    Opaque
    Dispersion
    Strength: none
    OpticalComments
    RefractiveIndex
    1.54
    Birefringence
    OpticCharacter
    NA
    OpticSign
    NA
    PolariscopeReaction
    Aggregate (AGG)
    Fluorescence
    SWUV: Inert
    LWUV: Inert
    CCFReaction
    Pleochroism
    None
  • Vegetable-ivory characteristic physical properties

    Hardness
    2.5
    CharacteristicComments
    Streak
    SpecificGravity
    1.38-1.42
    Toughness
    Inclusions
    Vegetable ivory might show parallel lines and has a dot like pattern in cross section.
    Luster
    Dull
    Stability
    Fracture
    Cleavage
    None