Chrome Diopside Gemstone & Information | Gemopedia by JTV | Gemopedia™

Chrome Diopside

Chrome diopside has several origins, but most of the finest material, and the only commercially viable deposit, is in the Republic of Sakha in Siberia, Russia. As you can imagine, production of this Siberian treasure is sporadic due to extreme winters that last more than eight months. The vivid greens of chrome diopside are a welcome alternative to rare and pricey emerald or tsavorite garnet, but has yet to gain mainstream recognition due to its limited availability. Minor sources of chrome diopside include Australia, Austria, Canada, Finland, Italy, Madagascar, South Africa and the United States.

Colors

Medium Dark Vivid Green, Bluish Green To Yellowish Green

  • Chrome-diopside classification

    CommonName
    Chrome Diopside
    Species
    Diopside
    Variety
    Chrome Diopside
    Colors
    Medium Dark Vivid Green, Bluish Green To Yellowish Green
    AlternateNames
    Tashmarine (Yellowish Green Material)
    GemstoneGroups
    Pyroxene
    KeySeparations
    refractive index, birefringence, optic character and spectrum. Chrome diopside may be separated from ordinary green diopside by their respective spectra; ordinary green does not have lines in the orange and red characteristic of the presence of chromium.
    ClassificationComments
  • Chrome-diopside chemistry & crystallography

    ChemicalName
    calcium magnesium silicate
    ChemicalFormula
    CaMgSi2O6
    Synthesis
    CrystalSystem
    Monoclinic
    ChemistryClassification
    Silicate
    Nature
    Natural
    Crystallinity
    Crystalline
    ChemistryComments
  • Chrome-diopside optical properties

    Transparency
    Transparent - Opaque
    Dispersion
    Strength: moderate fire Value: 0.02
    OpticalComments
    RefractiveIndex
    1.675-1.701
    Tolerance:(+0.029/-0.010)
    Birefringence
    0.024-0.03
    OpticCharacter
    Biaxial
    OpticSign
    Positive
    PolariscopeReaction
    Doubly Refractive (DR)
    Fluorescence
    SWUV: Inert
    LWUV: Green
    CCFReaction
    Pleochroism
    Dichroic, weak to strong light and dark green
  • Chrome-diopside characteristic physical properties

    Hardness
    5.5-6.5
    CharacteristicComments
    Streak
    SpecificGravity
    3.22-3.4 Range:0.11/-0.07 Typical:3.29
    Toughness
    Poor
    Inclusions
    Black needle-like magnetite inclusions that might be magnetic, metallic like inclusions and liquid inclusions.
    Luster
    Vitreous
    Stability
    Fracture
    Conchoidal, Uneven
    Cleavage
    Good, in two directions