A mysterious green opal was found in Piauí by researchers from the Federal Institute of Piauí (IFPI). The discovery expands the map of gem-producing cities in the state, representing a new occurrence that had not yet been documented.
The IFPI researchers identified the green opal during studies in the region. However, the stone is still undergoing analysis to determine its characteristics and exact origin.
The ongoing studies should define the quality of the gem found, the extent of its occurrence, and the potential for commercial or scientific use of the material. For now, the green opal remains a mysterious discovery, awaiting more definitive conclusions from the researchers.
