Arsenopyrite Gemstone & Information | Gemopedia by JTV | Gemopedia™

Arsenopyrite

Arsenopyrite is the most common arsenic mineral and gets its name from the combination of its former name: aresenical pyrites. Its color is silver-white to steel-gray on freshly broken surfaces. It yields a garlic odor when heated and the fumes can be toxic. It may tarnish to form an iridescent layer. Although arsenic has a reputation for being poisonous to humans, complex compounds are actually used in the treatment of disease caused by microorganisms.

Colors

Slivery White To Steel Gray White Faint White, Yellow Tint

  • Arsenopyrite classification

    CommonName
    Arsenopyrite
    Species
    Arsenopyrite
    Variety
    Colors
    Slivery White To Steel Gray White Faint White, Yellow Tint
    AlternateNames
    Mispickel
    GemstoneGroups
    KeySeparations
    ClassificationComments
    This stone contains arsenic and special care needs to be used. Always wash your hands after handling.
  • Arsenopyrite chemistry & crystallography

    ChemicalName
    iron arsenide sulfide
    ChemicalFormula
    FeAsS
    Synthesis
    CrystalSystem
    Monoclinic
    ChemistryClassification
    Sulfide
    Nature
    Natural
    Crystallinity
    Crystalline
    ChemistryComments
  • Arsenopyrite optical properties

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

    Hardness
    5.5-6
    CharacteristicComments
    Streak
    Gray To Black
    SpecificGravity
    5.9-6.2
    Toughness
    Poor
    Inclusions
    Luster
    Metallic
    Stability
    Poor
    Fracture
    Uneven
    Cleavage
    Good, in one direction