Arsenopyrite Gemstone & Information | Gemopedia by JTV | Gemopedia™
Arsenopyrite is the most common arsenic mineral and gets its name from the combination of its former name: aresenical pyrites. Its color is silver-white to steel-gray on freshly broken surfaces. It yields a garlic odor when heated and the fumes can be toxic. It may tarnish to form an iridescent layer. Although arsenic has a reputation for being poisonous to humans, complex compounds are actually used in the treatment of disease caused by microorganisms.
Slivery White To Steel Gray White Faint White, Yellow Tint
Arsenopyrite classificationCommonNameArsenopyriteSpeciesArsenopyriteVarietyColorsSlivery White To Steel Gray White Faint White, Yellow TintAlternateNamesMispickelGemstoneGroupsKeySeparationsClassificationCommentsThis stone contains arsenic and special care needs to be used. Always wash your hands after handling.
Arsenopyrite chemistry & crystallographyChemicalNameiron arsenide sulfideChemicalFormulaFeAsSSynthesisCrystalSystemMonoclinicChemistryClassificationSulfideNatureNaturalCrystallinityCrystallineChemistryComments
Arsenopyrite optical propertiesTransparencyOpaqueDispersionOpticalCommentsRefractiveIndexBirefringenceOpticCharacterOpticSignPolariscopeReactionFluorescenceSWUV:
Arsenopyrite characteristic physical propertiesHardness5.5-6CharacteristicCommentsStreakGray To BlackSpecificGravity5.9-6.2ToughnessPoorInclusionsLusterMetallicStabilityPoorFractureUnevenCleavageGood, in one direction