Chalcopyrite Gemstone & Information | Gemopedia by JTV | Gemopedia™

Chalcopyrite

Named for the Greek khalkos meaning "copper," and "pyrite," chalcopyrite is a major ore of copper. It has a metallic luster, resembling gold. Specimens are often collected and are found in Colorado, Arizona in the USA, as well as England, Tasmania, Germany, Canada, Spain, Japan and China.

Colors

Brassy, maybe Tarnished, Iridescent

  • Chalcopyrite classification

    CommonName
    Chalcopyrite
    Species
    Chalcopyrite
    Variety
    Colors
    Brassy, maybe Tarnished, Iridescent
    AlternateNames
    Copper Pyrite
    GemstoneGroups
    KeySeparations
    SG, mohs hardness, appearance
    ClassificationComments
  • Chalcopyrite chemistry & crystallography

    ChemicalName
    copper iron sulfide
    ChemicalFormula
    CuFeS2
    Synthesis
    CrystalSystem
    Tetragonal
    ChemistryClassification
    Sulfide
    Nature
    Natural
    Crystallinity
    Crystalline to Aggregate
    ChemistryComments
  • Chalcopyrite optical properties

    Transparency
    Opaque
    Dispersion
    OpticalComments
    RefractiveIndex
    0
    Birefringence
    OpticCharacter
    NA
    OpticSign
    NA
    PolariscopeReaction
    Fluorescence
    SWUV: Inert
    LWUV: Inert
    CCFReaction
    Pleochroism
    None
  • Chalcopyrite characteristic physical properties

    Hardness
    3.5-4
    CharacteristicComments
    Streak
    SpecificGravity
    4.1-4.3
    Toughness
    Poor
    Inclusions
    Luster
    Metallic
    Stability
    Fracture
    Uneven
    Cleavage
    Poor, in two directions