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English AbstractSericite SchistParallel Fibresunder the MicroscopeGrowth ConditionsGemmological TestingSynthetic AlexandriteSnowflake SpotDiopside JadePhysical PropertiesBlue ChalcedonyStirring TechniquesNatural EmeraldSynthetic EmeraldMonodisperse LatexHard Sphere SystemClose-packed StructureMethods of CultivationHydrothermal SolutionKinematical Theory