Rhodolite Garnet Gemstone & Information | Gemopedia by JTV | Gemopedia™

Rhodolite Garnet

Unusually striking, rhodolite is a naturally occurring blend of almandite and pyrope garnet. While raspberry is the most prized color, rhodolite is also found in shades of pink through lavender, including the ruddy purples of its namesake, the rhododendron flower. Rhodolite is typically found as water-worn pebbles in alluvial deposits, but it is also occasionally mined directly from host metamorphic rock. Tough, durable, never enhanced and easily cleaned, rhodolite is ideal for jewelry. Due to its bright transparent clarity, rhodolite is often cut into fantasy shapes.

Colors

Light To Dark Purplish Red Through Reddish Purple

  • Rhodolite-garnet classification

    CommonName
    Rhodolite Garnet
    Species
    Pyrope-Almandite
    Variety
    Rhodolite Garnet
    Colors
    Light To Dark Purplish Red Through Reddish Purple
    AlternateNames
    GemstoneGroups
    Garnet
    KeySeparations
    RI, SR nature and spectrum.
    ClassificationComments
    Stones are only rhodolite garnet if there is a purple component to the color.
  • Rhodolite-garnet chemistry & crystallography

    ChemicalName
    magnesium iron aluminum silicate
    ChemicalFormula
    ((Mg,Fe)3AL2(SiO4)3)
    Synthesis
    CrystalSystem
    Cubic
    ChemistryClassification
    Silicate
    Nature
    Natural
    Crystallinity
    Crystalline
    ChemistryComments
  • Rhodolite-garnet optical properties

    Transparency
    Transparent
    Dispersion
    Strength: moderate fire Value: 0.022
    OpticalComments
    RefractiveIndex
    1.75-1.78
    Birefringence
    OpticCharacter
    NA
    OpticSign
    NA
    PolariscopeReaction
    Singly Refractive (SR) With ADR
    Fluorescence
    SWUV: Inert
    LWUV: Inert
    CCFReaction
    Pleochroism
    None
  • Rhodolite-garnet characteristic physical properties

    Hardness
    7-7.5
    CharacteristicComments
    Streak
    White
    SpecificGravity
    3.74-3.94 Range:0.1/-0.1 Typical:3.84
    Toughness
    Good
    Inclusions
    Rhodolite garnet is a type II clarity stone. Needle like inclusions, zircon crystals with stain halos and irregular rounded included crystals that might be zircon or apatite.
    Luster
    Vitreous
    Stability
    Good
    Fracture
    Conchoidal
    Cleavage
    None