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Origin: This rare material is exclusively found near the Mount Papandayan volcano in West Java, Indonesia.Hardness: It is relatively soft, typically measuring between 4 and 5 on the Mohs scale, though some sources vary from 2.5 to 7 depending on the specific mineral concentration.Handling & CareDue to its unique chemical makeup, this stone requires specific precautions:Toxic Components: Because it contains arsenic and sulfur, you should always wash your hands thoroughly after handling it.Not for Ingestion: It should never be used to make crystal elixirs, as toxic compounds can leach into the water.Water Sensitivity: Do not submerge it in water or expose it to harsh chemicals, as this can cause irreversible damage to the stone's appearance and structure.Fragility: It is porous and can be fragile; avoid dropping it or subjecting it to heavy impact.