Trilobite Gemstone & Information | Gemopedia by JTV | Gemopedia™

Trilobite

Trilobites are remarkable, hard-shelled creatures that lived some 400 to 500 million years ago in Earth's ancient seas. Trilobites represent the single most diverse class of extinct organisms. Throughout the 270 million years they inhabited the oceans, they continued to evolve into various species, leading to a great deal of diversity in their size, form and function. This means there is a wide variety of trilobite fossils to collect! One of the most appealing factors about trilobite fossils is that you can hold and examine an entire fossil animal as you turn it about in your hand.

Colors

Brown, black, gray, pink, may be brassy if pyritized

  • Trilobite classification

    CommonName
    Trilobite
    Species
    NA
    Variety
    Colors
    Brown, black, gray, pink, may be brassy if pyritized
    AlternateNames
    GemstoneGroups
    KeySeparations
    Appearance
    ClassificationComments
    Trilobites fossils are extinct marine arthropods. The oldest known fossils are from 521 million years ago and went extinct about 250 million years ago.
  • Trilobite chemistry & crystallography

    ChemicalName
    ChemicalFormula
    Synthesis
    CrystalSystem
    NA
    ChemistryClassification
    Rock
    Nature
    Natural
    Crystallinity
    Aggregate
    ChemistryComments
  • Trilobite optical properties

    Transparency
    Opaque
    Dispersion
    OpticalComments
    RefractiveIndex
    Birefringence
    OpticCharacter
    OpticSign
    PolariscopeReaction
    Fluorescence
    SWUV:
    LWUV:
    CCFReaction
    Pleochroism
    None
  • Trilobite characteristic physical properties

    Hardness
    CharacteristicComments
    Streak
    SpecificGravity
    Toughness
    Inclusions
    Luster
    Dull
    Stability
    Fracture
    Cleavage
    None