Translucent Polished Agate Slice Pendant in CopperLarge Semitransparent Agate oval slice Pendant in wire wrapped Copper that has been polished and sealed to keep it shiny for years. Approximaltey 2 1 2" long and 1 5 8" wide. Sealed with Protectaclear. ProtectaClear is a clear, protective coating that is tough enough to protect jewelry and is safe for wear against skin. ProtectaClear is practically invisible once applied and will seal and protect jewelry from tarnish, oxidation, and corrosion.