Charoite Gemstone & Information | Gemopedia by JTV | Gemopedia™

Charoite

Charoite offers an intriguing, mystical array of patterns that are both eye-catching and mesmerizing. The patterns often exhibit a combination of swirls, veins and spots that give each piece a unique and magical appearance. The name Charoite is used to describe both a mineral and an attractive gem material primarily composed of charoite. The gem material comes from the remote, mountainous region of the Sakha Republic of Russia, which remains its only known source.

Colors

Purple With Swirls, Spots Of Black, Gray, White, Brownish Orange

  • Charoite classification

    CommonName
    Charoite
    Species
    Charoite
    Variety
    Colors
    Purple With Swirls, Spots Of Black, Gray, White, Brownish Orange
    AlternateNames
    GemstoneGroups
    KeySeparations
    Appearence, RI, and possibly fluorescence
    ClassificationComments
    Conglomerate of charoite, aegirine-augite, feldspar and tinaksite and other materials that might give different RI readings.Often displays 1.55 or 1.56 spot reading.
  • Charoite chemistry & crystallography

    ChemicalName
    hydrated potassium calcium sodium hydroxide fluoride
    ChemicalFormula
    (K,Na)5(Ca,Ba,Sr)8(Si6O15)2Si4O9(OH,F).11H2O
    Synthesis
    CrystalSystem
    Monoclinic
    ChemistryClassification
    Rock
    Nature
    Natural
    Crystallinity
    Aggregate
    ChemistryComments
  • Charoite optical properties

    Transparency
    Semitranslucent - Opaque
    Dispersion
    OpticalComments
    RefractiveIndex
    1.55-1.559
    Tolerance:(+0.002/-0.002)
    Birefringence
    OpticCharacter
    Biaxial
    OpticSign
    Positive
    PolariscopeReaction
    Aggregate (AGG)
    Fluorescence
    SWUV: Inert to patchy weak red
    LWUV: Inert to patchy weak red
    CCFReaction
    Pleochroism
    Unobservable
  • Charoite characteristic physical properties

    Hardness
    5-6
    CharacteristicComments
    Streak
    White
    SpecificGravity
    2.54-2.78 Typical:2.68
    Toughness
    Fair
    Inclusions
    Charoite has a fibrous or flame-like appearance with swirls and spots of black, gray, white or brownish orange.
    Luster
    Vitreous
    Stability
    Fracture
    Splintery, Granular
    Cleavage
    Good, in three directions