Pink Opal Gemstone & Information | Gemopedia by JTV | Gemopedia™

Pink Opal

Natural pink opal has no play of color and is a mixture of opal, palygorskite and chalcedony. Nicknamed the 'pink Andes opal', the soft pinks of this opal are appreciated as an environmentally friendly alternative to conch pearls as well as pink coral. Today, Peru is the major producer of this most feminine opal variety that is often carved into beads and occasionally faceted into gems.

Colors

Pale Pink To Dark Pink

  • Pink-opal classification

    CommonName
    Pink Opal
    Species
    Opal
    Variety
    Pink Opal
    Colors
    Pale Pink To Dark Pink
    AlternateNames
    GemstoneGroups
    KeySeparations
    Appearance, RI and fluorescence
    ClassificationComments
    Pink opal might have characteristics in between common opal and chalcedony because it can be composed of both materials.
  • Pink-opal chemistry & crystallography

    ChemicalName
    hydrated silicon dioxide; opal, palygorskite and chalcedony
    ChemicalFormula
    SiO2.nH2O
    Synthesis
    CrystalSystem
    NA
    ChemistryClassification
    Silicate
    Nature
    Natural
    Crystallinity
    Amorphous
    ChemistryComments
  • Pink-opal optical properties

    Transparency
    Translucent - Opaque
    Dispersion
    OpticalComments
    RefractiveIndex
    1.37-1.53
    Birefringence
    OpticCharacter
    NA
    OpticSign
    NA
    PolariscopeReaction
    Aggregate (AGG)
    Fluorescence
    SWUV: inert to strong green or yellowish green
    LWUV: inert to strong green or yellowish green
    CCFReaction
    Pleochroism
    None
  • Pink-opal characteristic physical properties

    Hardness
    6
    CharacteristicComments
    Streak
    White
    SpecificGravity
    1.98-2.55
    Toughness
    Varies
    Inclusions
    Luster
    Vitreous
    Stability
    Poor
    Fracture
    Conchoidal, Uneven
    Cleavage
    None