'Powder' in the Bible

They tore down the altars of the Baals in his presence, and the incense altars that were high above them he chopped down; also the Asherim, the carved images and the molten images he broke in pieces and ground to powder and scattered it on the graves of those who had sacrificed to them.

And when he had broken down the altars and the groves, and had beaten the graven images into powder, and cut down all the idols throughout all the land of Israel, he returned to Jerusalem.