Pyrope-Almandite Garnet Gemstone & Information | Gemopedia by JTV | Gemopedia™

Pyrope-Almandite Garnet

Unusually striking, pyrope-almandite garnet is a naturally occurring garnet blend. While raspberry is the most prized color, it is also found in shades of pink through lavender. This gem 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, pyrope-almandite garnet is ideal for jewelry, usually referred to as "rhodolite garnet." Due to its bright transparent clarity, it is often cut into fantasy shapes.

Colors

Orangy Red To Brownish Red, Dark Red, Light To Dark Purplish Red Through Reddish Purple

  • Pyrope-almandite-garnet classification

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

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

    Hardness
    7-7.5
    CharacteristicComments
    Streak
    SpecificGravity
    3.68-3.88 Range:0.1/-0.1 Typical:3.78
    Toughness
    Good
    Inclusions
    Pyrope-almandite 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