... and findings, such as Gemstone Beads, Glass Beads, Lamp-work Glass Beads, Silver Foil Glass Beads, Gold Foil Glass Beads, Fresh Water Pearls, River Shell ... , ASTM-D4236, USP51 and USP61. MaterialsPlastic,CCB,polyester,metal,cystal,glass,cat’s eye,zircon, ceramic,hematite,coral,semi-precious,wooden ...