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    • Natural blue zircon from Vesuvius 

      Sun, YiORCIDiD; Schmitt, Axel K.ORCIDiD; Häger, Tobias; Schneider, Marcus; Pappalardo, Lucia; Russo, Massimo (Mineralogy and Petrology, 2020-10-31)
      Zircon from syenitic ejecta of Vesuvius (Campania, Italy) is unusually blue, a property shared with gem zircon from Ratanakiri province (Cambodia), which turns from natural reddish-brown to blue when heated under reducing ...