Lapis Lazuli is a Vanilla Dye obtained by mining Lapis Lazuli Ore with a Stone Pickaxe or better. Similar to Coal, Redstone, and Diamond, Lapis Lazuli can be used immediately without the need for smelting or macerating. In Tekkit, Lapis Lazuli is mainly used in crafting advanced electronics, like the Advanced Circuit or the Lapotron Crystal.
Metal Post (Blue)
Alchemy Bag (Blue)