Gold Dust

Gold Dust is the name of the weapon used by the Fourth Kazekage. The golden dust can be manipulated into various formations. While using it dark rings appear around the Kazekage's eyes. He used this weapon in the past to protect Sunagakure when Shukaku went berserk, by integrating the gold dust into the sand under the beast's control, vastly increasing its weight and thus, making it more difficult for the creature to manipulate. He can also make a Third Eye out of the dust, as Gaara can make one out of sand.

Trivia

 * Gold isn't a magnetic metal like iron, nickel or cobalt. However, it is diamagnetic.