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    • Environmental issues on the industrial processing of raw agate 

      Vilasbôas, Fernanda da Silva; Santos, Cassiano Rossi dos; Schneider, Ivo Andre Homrich (2017) [Journal article]
      Agate geodes are treated and stained for the production of handmade artifacts and jewelry, which greatly increases their aggregate value. Unit operations involve storage, sorting, cutting, crushing, dyeing, polishing, ...