Padparadscha Sapphire Gemstone & Information | Gemopedia by JTV | Gemopedia™
While sapphires have mesmerized gem and jewelry connoisseurs since the dawn of time, one fancy sapphire variety has a distinct allure and prestige all its own--the mysterious and coveted padparadscha sapphire. The padparadscha derives its name from the Sanskrit "padma ranga" meaning "lotus color," for its resemblance to the beautiful and famed lotus flowers of Sri Lanka, where the gem was originally found. Padparadscha sapphires traditionally must combine elements of pink and orange in one gem to rightly claim their padparadscha title, though the coloration requirements are highly disputed.
Intense Light To Medium Pinkish Orange To Orange-Pink
Padparadscha-sapphire classificationCommonNamePadparadscha SapphireSpeciesCorundumVarietyPadparadscha SapphireColorsIntense Light To Medium Pinkish Orange To Orange-PinkAlternateNamesGemstoneGroupsKeySeparationsRI, birefringence, pleochroism, magnification, color and spectraClassificationCommentsPadparadscha means lotus flower and this where this variety gets its name.
Padparadscha-sapphire chemistry & crystallographyChemicalNamealuminum oxideChemicalFormulaAl2O3SynthesisCrystalSystemTrigonalChemistryClassificationOxideNatureNaturalCrystallinityCrystallineChemistryComments
Padparadscha-sapphire optical propertiesTransparencyTransparent - OpaqueDispersionStrength: weak fire Value: 0.018OpticalCommentsRefractiveIndex1.762-1.77
Tolerance:(+0.009/-0.005)Birefringence0.008-0.01OpticCharacterUniaxialOpticSignNegativePolariscopeReactionDoubly Refractive (DR)FluorescenceSWUV: Inert
LWUV: Orange:Inert to strong orangy redCCFReactionPleochroismDichroic, strong yellowish orange and colorless
Padparadscha-sapphire characteristic physical propertiesHardness9CharacteristicCommentsStreakWhiteSpecificGravity3.95-4.1 Typical:4ToughnessExcellentInclusionsThis stone has type II clarity and sometimes will have silk, rutile, boehmite or zircon crystals and fingerprint inclusions. Stones can show hexagonal growth and color zoning. Untreated stones will usually have inclusions intact. Heat treated stones will have fracture halos or snowballs around crystal inclusions( untreated stones from magmatic areas might also show these characteristics). Silk will be broken and might show sintered areas especially around the girdle.LusterSubAdamantineStabilityVery GoodFractureConchoidalCleavageNone