Gold Dust is an item added by Industrial Craft 2. It's one of the six kinds of Dusts and is obtained by macerating Gold Ore, Nether Gold Ore, Gold Ingots, or by obtaining it from a Scrap Box. It can be turned back into an Gold Ingot by smelting it, or used in the crafting of the Electrum Blend. Gold Dust can also be combined with Redstone to make Glowstone Dust.
Gold Dust is functionally identical to Pulverized Gold.