In this particular scene, it seems he touched the sand and the sand particles controlled by Gaara turned gold dust. What did he do exactly? Did he transmute sand into gold?
And where does the colossal amount of gold he extracted from the ground come from? This ability of his is a little confusing. We could assume that he pulled directly from under the earth, but this scene I brought up looks like he simply turns the sand into gold.
What are your opinions on this?