Pyrope-Almandite Garnet Gemstone & Information | Gemopedia by JTV | Gemopedia™
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.
Orangy Red To Brownish Red, Dark Red, Light To Dark Purplish Red Through Reddish Purple
Pyrope-almandite-garnet classificationCommonNamePyrope-Almandite GarnetSpeciesPyrope-Almandite GarnetVarietyColorsOrangy Red To Brownish Red, Dark Red, Light To Dark Purplish Red Through Reddish PurpleAlternateNamesRhodolite GarnetGemstoneGroupsGarnetKeySeparationsRI, SR nature and spectrum.ClassificationCommentsStones are only rhodolite garnet if there is a purple component to the color.
Pyrope-almandite-garnet chemistry & crystallographyChemicalNamemagnesium iron aluminum silicateChemicalFormula(Mg,Fe)3AL2(SiO4)3)SynthesisCrystalSystemCubicChemistryClassificationSilicateNatureNaturalCrystallinityCrystallineChemistryComments
Pyrope-almandite-garnet optical propertiesTransparencyTransparentDispersionStrength: moderate fire Value: 0.022OpticalCommentsRefractiveIndex1.75-1.78BirefringenceOpticCharacterNAOpticSignNAPolariscopeReactionSingly Refractive (SR) With ADRFluorescenceSWUV: Inert
Pyrope-almandite-garnet characteristic physical propertiesHardness7-7.5CharacteristicCommentsStreakSpecificGravity3.68-3.88 Range:0.1/-0.1 Typical:3.78ToughnessGoodInclusionsPyrope-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.LusterVitreousStabilityGoodFractureConchoidalCleavageNone