Danalite Gemstone & Information | Gemopedia by JTV | Gemopedia™

Danalite

Danalite is a very rare brown, yellow to pink-red colored mineral named for the American mineralogist James Dwight Dana in 1866. Danalite has a limited number of global sources, including the New England states of Massachusetts, Rhode Island and Delaware.

Colors

Pink, Gray, Yellow, Reddish Brown, Red

  • Danalite classification

    CommonName
    Danalite
    Species
    Danalite
    Variety
    Colors
    Pink, Gray, Yellow, Reddish Brown, Red
    AlternateNames
    GemstoneGroups
    KeySeparations
    ClassificationComments
  • Danalite chemistry & crystallography

    ChemicalName
    ChemicalFormula
    Fe42+(Be3Si3O12)S
    Synthesis
    CrystalSystem
    Cubic
    ChemistryClassification
    Silicate
    Nature
    Natural
    Crystallinity
    Crystalline
    ChemistryComments
  • Danalite optical properties

    Transparency
    Translucent
    Dispersion
    OpticalComments
    RefractiveIndex
    Birefringence
    OpticCharacter
    OpticSign
    PolariscopeReaction
    Fluorescence
    SWUV:
    LWUV:
    CCFReaction
    Pleochroism
    Unobservable
  • Danalite characteristic physical properties

    Hardness
    5.5-6
    CharacteristicComments
    Streak
    SpecificGravity
    3.28-3.46
    Toughness
    Poor
    Inclusions
    Luster
    Vitreous
    Stability
    Fracture
    Uneven
    Cleavage
    Poor, in two directions