Chlorite In Quartz Gemstone & Information | Gemopedia by JTV | Gemopedia™

Chlorite In Quartz

When chlorite occurs as an inclusion within quartz, it gives the gem a green color and may cause phantom growths, as seen by the ghost-like layers of crystal left behind as the crystal grew in stages.

Colors

Brown, Tan, Gray

  • Chlorite-in-quartz classification

    CommonName
    Chlorite In Quartz
    Species
    Quartz
    Variety
    Colors
    Brown, Tan, Gray
    AlternateNames
    GemstoneGroups
    KeySeparations
    Refractive index, appearance, birefringence
    ClassificationComments
    The chlorite group is made up of several mineral species two of which are clinochlore and chamosite are they are the most common.
  • Chlorite-in-quartz chemistry & crystallography

    ChemicalName
    silicon dioxide (aka silica)
    ChemicalFormula
    SiO2
    Synthesis
    CrystalSystem
    Trigonal
    ChemistryClassification
    Silicate
    Nature
    Natural
    Crystallinity
    Crystalline to Aggregate
    ChemistryComments
  • Chlorite-in-quartz optical properties

    Transparency
    Transparent - Opaque
    Dispersion
    Strength: weak fire Value: 0.013
    OpticalComments
    RefractiveIndex
    1.544-1.553
    Tolerance:very constant
    Birefringence
    0.009
    OpticCharacter
    Uniaxial
    OpticSign
    Positive
    PolariscopeReaction
    Doubly Refractive (DR)
    Fluorescence
    SWUV: Inert
    LWUV: Inert
    CCFReaction
    Pleochroism
    None
  • Chlorite-in-quartz characteristic physical properties

    Hardness
    7
    CharacteristicComments
    Streak
    White
    SpecificGravity
    2.64-2.69 Typical:2.66
    Toughness
    Good
    Inclusions
    Chlorite in quartz will have chlorite group inclusions and they sometimes will contian liquid, two-phase and three-phase inclusions, negative crystals, minerals, needles, rutile, iron particles.
    Luster
    Dull
    Stability
    Good
    Fracture
    Conchoidal
    Cleavage
    None