Yes. You can make blue dye from it.isnt lapis lazuli only for dyeing purposes?
Redstone Ore deposits can be found below level 16. If you don't know what the levels mean, press F3 and some coordinates should pop on your screen. Y is the vertical coordinate.I've been doing singleplayer, no mods, and I've found only one piece of redstone dust, and that's when I came across a dungeon with loot and a spawner.